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Casio Databank

The Casio Data Bank is a longstanding line of digital wristwatches manufactured by the Japanese electronics company Casio, renowned for integrating calculator functions and electronic data storage directly into a wearable device. Launched in the mid-1980s, the series pioneered personal data management on the wrist, allowing users to store and retrieve information such as telephone numbers, appointments, and memos alongside timekeeping and computational tools.^[1] The inaugural model, the CD-40 released in January 1984, marked a significant innovation by featuring memory storage for up to 10 telephone numbers, combining a compact calculator with basic organizational capabilities in a single accessory.^[2] This built on Casio's earlier digital watch expertise, which began with the Casiotron in 1974, and expanded the brand's portfolio into multifunctional "smart" wearables well before the smartphone era.^[3] Subsequent 1980s models, such as the DB-1000 introduced in August 1984, advanced the technology with features like handwritten word recognition, while later iterations in the 1990s incorporated specialized tools including kanji dictionaries for Japanese users.^[2]^[4] Throughout its history, the Data Bank series has emphasized durability, affordability, and retro-futuristic design, often featuring a distinctive 10-key numeric keypad on the watch face for intuitive data entry and calculations. Modern iterations, like the DBC-32 series, retain core elements such as an 8-digit calculator, 25-entry memory databank, currency conversion, multiple alarms, and long battery life up to 10 years, appealing to collectors and nostalgic users alike.^[5] The line's enduring popularity underscores Casio's role in blending everyday utility with electronic innovation, influencing the evolution of wearable technology.^[6]

History

Origins and Early Models (1970s-1980s)

Casio's entry into the wristwatch market began in the early 1970s, building on its expertise in electronic calculators and digital technology. In 1974, the company launched the Casiotron QW02, the world's first quartz digital watch with an automatic calendar function that adjusted for varying month lengths and leap years.^[7] Priced at 58,000 yen in Japan—equivalent to about a month's salary for many at the time—this model marked Casio's shift from calculators to wearable electronics, establishing digital timekeeping as a foundation for future multifunctional devices.^[8] The Casiotron received strong initial reception in Japan for its precision and innovation, paving the way for Casio's global expansion into consumer electronics wearables by the late 1970s.^[9] The evolution toward data-integrated watches accelerated in the early 1980s with the introduction of calculator functionality on the wrist. In 1980, Casio released the C-80, its first calculator-style watch, featuring a compact keypad with rubber buttons for fingertip operation and an eight-digit display for basic arithmetic.^[10] Unlike prior models from competitors like Seiko and Citizen, the C-80's ergonomic design made it accessible for everyday use, contributing to Casio's rapid growth as a watch brand and earning it a reputation as an iconic gadget of the era.^[9] This precursor lacked data storage but demonstrated Casio's ability to miniaturize computing power, setting the stage for more advanced hybrids. The true origins of the Databank series emerged in 1984 with the debut of the CD-40 and CD-401 models in January, Casio's first watches dedicated to data storage alongside timekeeping. These pioneering devices allowed users to store up to 10 telephone numbers in internal memory, each entry supporting 12 digits and 4 letters for names or labels, accessed via a simple recall function.^[6] Later that year, in August, the DB-1000 advanced the series with a 50-entry memory and innovative handwritten word recognition via the Finger Trace Recognition System for data input.^[2] Building on the C-80's calculator foundation, the Databank introduced key innovations in integrated non-volatile memory for personal data management, making it a precursor to modern smartwatches. Released initially in Japan, the models quickly gained international traction, appealing to tech enthusiasts and professionals for their practicality in an increasingly digital world.^[11] Early Databank iterations also incorporated basic calculator functions, as seen in companion models like the CA-50, launched in 1984 with an eight-digit calculator, stopwatch, alarm, and hourly chime.^[12] The CA-53, introduced in 1988 as a refined successor, enhanced these features with improved battery life and a more compact resin case while retaining the core calculator and timing tools.^[13] These watches exemplified Casio's focus on multifunctional utility, receiving positive market feedback in Japan and abroad for their affordability and durability, which helped solidify the brand's position in the global watch market during the 1980s.^[9] This foundational era laid the groundwork for later expansions in storage capacity and features.

Development and Expansion (1990s-2000s)

In the 1990s, Casio significantly expanded the Databank series through the introduction of the Telememo line, which enhanced data storage for personal information such as names, phone numbers, and memos. Models like the DBC-3000 exemplified this advancement, providing capacity for up to 300 records to meet growing demands for portable organization tools.^[14] A key innovation during this decade was the incorporation of audio recording capabilities in select Databank watches, enabled by specialized integrated circuits that allowed users to capture voice memos alongside traditional calculator and Telememo functions. This multimedia integration marked a shift toward more versatile wearable devices, with record and playback features adding practical utility for business and daily use.^[4] Entering the 2000s, Casio focused on refining the Databank's design and performance, introducing hybrid digital-analog displays in models like the FKT-2000 for improved readability and aesthetic appeal. The DB-36 series, launched in 2002, further expanded memory options while prioritizing durability through features such as extended battery life—up to 10 years on a single CR2025 cell—and multilingual databank support for global users.^[3]^[15]^[16] Throughout the 1990s and 2000s, key releases reflected evolving priorities: multimedia enhancements like audio and Kanji dictionaries in the 1990s (e.g., DKW-100 in 1991), transitioning to robustness improvements such as radio-controlled synchronization (FKT-100L in 1995) and prolonged battery efficiency in the 2000s. As personal digital assistants (PDAs) gained prominence in the mid-1990s, Casio responded by preserving the Databank's role as a compact, wrist-worn alternative, while diversifying into standalone PDAs like the Z-7000 to address broader market needs.^[17]^[18]

Features and Functionality

Data Storage and Management

The Telememo function serves as the primary data storage mechanism in Casio Databank watches, enabling users to save contact details such as names, phone numbers, and schedules directly on the device.^[6] Initially designed for business professionals, this feature allowed quick access to essential information without external tools, with early implementations focusing on numeric and limited alphanumeric entries.^[10] Storage capacities varied significantly across models, starting small in the 1980s and expanding in subsequent decades to accommodate more data. The pioneering CD-40 model from 1984 supported just 10 records, each limited to 4 letters for names and 12 digits for phone numbers, reflecting the constraints of contemporary memory technology.^[10] By the mid-1980s, capacities grew to 50 telephone numbers in updated designs, providing greater utility for daily use.^[6] Later models in the 1990s, such as the EDB-610, introduced a 300-page Databank for basic contacts (8 characters plus 12 digits per page) alongside an e-Data Memory section holding 50 entries of up to 63 characters each, including support for emails and longer text.^[19] Modern iterations, like those with module 3531, typically offer 25 records with 8-character names and 12-digit phone numbers.^[20] Data organization features enhanced usability, including automatic alphabetical sorting of records by name to facilitate quick retrieval.^[20] Users could perform searches by entering the initial letters, while multi-page allocation allowed extended entries in advanced models, such as viewing text in increments across screens.^[19] Password protection became available in e-Data variants, requiring a 4-digit code (defaulting to 0000) to access sensitive information, with forgetting the password necessitating a full reset and data loss.^[21] The evolution of storage media progressed from basic integrated circuits in 1980s models to higher-density EEPROM chips in later designs, enabling non-volatile retention of text and numeric data even without constant power.^[19] However, all Databank models feature fixed, non-expandable memory, relying on manual keypad input for all entries and lacking connectivity options for external data transfer. This design prioritized portability but limited scalability compared to digital organizers of the era.

Calculator and Additional Tools

The Casio Databank series incorporates a built-in 8-digit calculator capable of performing basic arithmetic operations including addition, subtraction, multiplication, and division, along with support for constants, powers, and memory recall functions.^[22] Users input calculations via an integrated 10-key keypad located on the watch case, with results displayed directly on the digital watch face for immediate viewing.^[5] Beyond the calculator, Databank watches offer practical additional tools such as world time functionality for up to 31 cities in select models, a 1/100-second stopwatch for measuring elapsed time, split times, and finishes up to 24 hours, a countdown timer, and up to five multi-function alarms including daily, date-specific, and snooze options.^[23]^[22]^[24] Specialized features in certain Databank models include a currency converter that applies a user-set exchange rate for multiplication or division-based conversions alongside arithmetic calculations.^[22] To conserve battery life, these tools incorporate power-saving modes, such as an automatic return to the timekeeping mode after approximately 6-7 minutes of inactivity in the calculator or 2-3 minutes in other functions.^[22] Calculation results can also be briefly saved to the watch's data bank memory for later reference.^[22]

Design and Technology

Hardware Components

The Casio Databank series relies on a quartz movement for precise timekeeping, ensuring accuracy within ±30 seconds per month across its digital models.^[5] These watches feature LCD displays for clear visibility of time, data, and calculator functions, with many incorporating EL (electroluminescent) backlighting introduced in the 1990s to evenly illuminate the entire screen in low-light conditions.^[4] Custom integrated circuit (IC) chips handle the core data storage and calculator operations, enabling features like multi-language support and memory for up to 25 entries in models such as the DBC-32.^[5] Case construction typically uses durable resin for the bezel and body, providing lightweight protection, while bands are often resin or stainless steel for versatility and comfort.^[25] Some variants feature stainless steel cases for enhanced premium appeal, and rare models like the DB-101T incorporate titanium for reduced weight and corrosion resistance. Water resistance ratings vary from 30 meters for basic splash protection to 100 meters in more robust designs, allowing use during swimming or light water exposure.^[16] Power is supplied by lithium coin cell batteries, commonly CR2016 or CR2025, depending on the module; for instance, the DBC-32 uses a CR2025, while older modules like 437 employ CR2016.^[26] Battery lifespans range from 5 years in calculator-heavy models like the CA-53W to 10 years in efficient designs like the DBC-32, influenced by usage of alarms and backlighting.^[25]^[5] Advanced Databank models integrate sensors for enhanced usability, such as light sensors paired with auto-EL or LED backlighting to activate illumination automatically in dark environments upon wrist tilt, as seen in 1990s iterations with brightness detection.^[4] This feature, often called Auto Light Switch, responds to angles greater than 40 degrees for hands-free operation.^[5] Design evolution reflects advancements in miniaturization, transitioning from bulky 1980s profiles—such as the DBC-600's 46 mm length and 9 mm thickness—to slimmer 2000s configurations under 12 mm thick, exemplified by the CA-53W's 8.2 mm height and 43.2 mm length for improved wearability.^[25] Early cases often measured around 40 mm in width to accommodate expansive data modules, while later resin builds reduced overall bulk without sacrificing functionality.^[5]

User Interface and Display

The user interface of Casio Databank watches relies on a combination of multi-function push buttons and, in calculator-equipped models, an integrated numeric keypad for input and navigation. Typically featuring 6 to 8 buttons, these include a dedicated MODE button for cycling through operational modes such as timekeeping, data bank, calculator, alarm, stopwatch, and dual time; an ADJUST button for entering and exiting setting screens; forward and reverse buttons (often labeled as REV/FWD or +/–) for scrolling through data or adjusting values; and a LIGHT button to activate the LED backlight for visibility in low-light conditions.^[27]^[28] In data entry scenarios, the keypad allows users to input numeric values directly or cycle through alphanumeric characters for names and phone numbers, with operations confirmed by pressing an ENTER or equal key.^[29] The display on Databank watches employs a monochrome LCD with segment-based characters, designed for clear visibility of time, date, and mode-specific information across 1 to 4 lines depending on the model. High-contrast segments ensure readability of digits and icons, such as battery indicators or mode labels, while some variants incorporate an analog-digital hybrid design where traditional hour and minute hands overlay a smaller digital window for supplementary data like alarms or world time.^[5]^[11] The LED backlight, enabled briefly via the dedicated button, illuminates the entire screen without significantly draining the battery, providing essential support for nighttime use.^[27] Navigation between functions involves sequential button presses, with the MODE button serving as the primary selector to switch displays— for instance, repeated presses transition from the default timekeeping screen to the data bank or calculator interface. Quick-access shortcuts, such as holding the + or – button in timekeeping mode to jump to data bank or dual time views, streamline common tasks, while audible beeps provide haptic feedback for successful inputs or errors during operation.^[28]^[22] Accessibility is enhanced through features like the high-contrast LCD, which supports legible large-digit formatting in time and alarm displays, and multilingual day-of-week indicators in up to 13 languages for broader usability. The backlight and segment design aid low-vision users by minimizing glare and maximizing contrast, though no explicit adjustable contrast settings are available across models.^[30]^[5] Despite these elements, the interface presents a steep learning curve due to the reliance on specific button combinations and mode sequences, often requiring users to consult detailed diagrams in the operation manual for proficient navigation and data management.^[11]^[27]

Models and Variants

Vintage and Classic Models

The Casio Databank series pioneered wearable data storage in the 1980s, with early models emphasizing compact memory for personal information alongside timekeeping functions. These vintage watches integrated rudimentary digital organization tools, such as telephone number storage, into wristwatch form factors, marking a shift from pure calculators to multifunctional devices. By the 1990s and early 2000s, innovations expanded to include schedule management and audio capabilities, though production of these original designs has since ceased.^[6] Key early icons include the CD-40, released in January 1984, which featured memory for 10 telephone numbers, each up to 16 characters combining numbers and letters, allowing users to store essential contacts directly on the wrist. This model represented an initial breakthrough in Databank technology, replacing small-scale phone books with electronic storage. The CA-53, introduced in the late 1980s, shifted focus toward calculator functionality, incorporating an eight-digit calculator for basic arithmetic alongside a stopwatch and daily alarm, appealing to users needing quick computations in a compact, resin-cased design. The DBC-600, from the late 1980s, introduced business-oriented features like Telememo for name and number storage plus a schedule alarm, available in a distinctive gold-tone finish for professional aesthetics.^[2]^[6]^[25] Classic series from the 1990s and 2000s built on these foundations with enhanced capacities. The DB-36, released in the early 2000s, offered 30-record Telememo storage supporting characters in 13 languages, world time for 27 cities, and dual time display, combining data management with global timekeeping in a lightweight resin case. Variants like the Telememo 100 and 300 series expanded storage significantly, with the 300 accommodating up to 300 records for names, numbers, and memos, catering to users requiring greater data volume without bulkier hardware. These models maintained the series' signature digital LCD displays and multi-function buttons for intuitive navigation.^[16]^[31] Unique variants highlighted experimental features, such as audio-enabled models from the 1990s that integrated a microphone and circuit for recording up to 20 seconds of voice memos, complementing standard Telememo and calculator tools for hands-free note-taking. Limited editions in this era often featured colorful resin cases and bands in vibrant hues like translucent blues and reds, adding fashion appeal to the utilitarian design while maintaining core Databank specs.^[4] Most vintage and classic Databank models are discontinued, with original retail prices ranging from approximately $50 to $150 USD depending on features and materials, though exact figures varied by market and year. Rarity factors include limited production runs for audio and colored variants, making well-preserved examples sought after today. For collectors, common issues involve battery leaks in 1980s units, where depleted cells can corrode internal components, necessitating prompt replacement to prevent irreversible damage.^[32]

Modern and Current Models

In the 2010s and 2020s, Casio continued to produce Databank watches with updated modules while preserving core functionalities like data storage and calculation tools inherited from earlier designs.^[33] The DBC-32 series, utilizing module 2888, emerged as a key modern offering, featuring an 8-digit calculator, memory for up to 25 entries supporting 13 languages, currency conversion, world time, and a 1/100-second stopwatch.^[5] This model emphasizes practicality without smartwatch connectivity, such as Bluetooth, opting instead for enhanced reliability through a 10-year battery life on a CR2025 cell and 30-meter water resistance.^[5] The CA-506 line represents a gold-tone revival of classic aesthetics, incorporating module 3208 with an 8-digit calculator, daily alarm, dual time display, and 5-year battery life on a CR2016 battery.^[34] Available in variants like the CA506G-9AVT, it features a resin case paired with a stainless steel band for durability and a 30-meter water resistance rating, appealing to users seeking a blend of retro style and modern wearability.^[33] Some contemporary Databank models, including those in the CA-53WF series, incorporate eco-friendly bio-based resin in their cases, derived from renewable sources like castor seeds, aligning with Casio's sustainability initiatives.^[35] As of November 2025, the active Databank lineup includes the CA-53WF series priced at $39.95 USD and the DBC-32-1A at $89.95 USD, available through Casio's official online store.^[33] These models maintain 30-meter water resistance without integrating smartphone features to differentiate from competing smartwatches. In 2025, Casio released limited-edition collaborations, such as the Back to the Future CA-53 calculator watch, celebrating the film's legacy with retro design elements and standard Databank functions, priced around $120 USD.^[36] Casio positions Databank in a niche market, with annual releases focusing on nostalgic designs and affordable pricing to sustain collector and everyday user interest amid broader watch industry trends.^[37]

Legacy and Cultural Significance

Collectibility and Market

Casio Databank watches, particularly those from the 1980s, hold significant appeal among collectors due to their rarity and embodiment of retro technology nostalgia. Models like the CD-40, released in 1984 as an early databank watch combining calculator and memory storage functions, are prized for their historical significance and limited surviving examples in working condition, often fetching $100 to $300 USD on secondary markets such as eBay.^[38]^[39] This interest stems from the watches' representation of early digital innovation, evoking 1980s tech culture and appealing to enthusiasts who value functional vintage gadgets over modern smartwatches.^[40] As of 2025, the secondary market for vintage Databank models thrives through platforms like eBay, Amazon, and enthusiast forums such as Watchuseek, where collectors trade and discuss rare pieces. Modern Databank variants, including the CA53 series and DBC-32, remain accessible at retail prices ranging from $40 to $100 USD directly from Casio, maintaining broad availability while contrasting the premium on discontinued vintages.^[33]^[41] These trends reflect sustained demand for both nostalgic relics and affordable everyday tools, with vintage sales often driven by condition and originality.^[29] Restoration efforts are common among owners, focusing on practical modifications like battery replacements (typically CR2016 or CR2025 cells) and LED backlight upgrades to revive dim or non-functional displays. Communities on Reddit's r/casio subreddit and Watchuseek forums actively share guides on these repairs, including module compatibility across models like the DBC-150 and DB-520, fostering a supportive network for maintaining these analog-digital hybrids.^[42]^[43] Limited editions from the 1990s, such as audio-recording models like the DBC-V500, command higher values due to their specialized features and low production runs, making them desirable for serious collectors. These variants, which integrated voice memo capabilities alongside traditional databank functions, have seen growing appreciation in the resale market as part of broader interest in Casio's innovative heritage.^[4]^[44] Global demand remains strong in Japan, the brand's home market, and the United States, where e-commerce drives sales; collectors are advised to authenticate purchases by verifying the engraved serial number on the case back, checking for crisp display quality, and purchasing from reputable sellers to avoid counterfeits.^[45] Appearances in popular media have further boosted demand among fashion-forward enthusiasts.

Appearances in Media and Fashion

The Casio Databank gained prominence in 1980s media as a symbol of futuristic technology, most notably featured on the wrist of Marty McFly, played by Michael J. Fox, in the 1985 film Back to the Future. The CA53W model, with its calculator and data storage functions, underscored the character's tech-savvy persona amid time-travel adventures.^[46] Later appearances included the DBC32-1A model worn by actor Jack Quaid in season 1 of the Amazon Prime series The Boys (2019), highlighting its enduring appeal in contemporary sci-fi narratives, and by Dev Patel as Deon Wilson in the 2015 film Chappie.^[47] These portrayals often positioned the Databank as an accessory for intellectuals or rebels navigating complex worlds, with modern nods in cyberpunk-inspired media evoking pre-smartphone utility. In 2025, Casio released a limited-edition CA-500WEBF-1AER collaboration with Back to the Future for the film's 40th anniversary, featuring DeLorean-themed design elements.^[48]^[49] In fashion, the Databank's bulky, digital design captured the 1980s gadget aesthetic, serving as a status symbol among youth for its multifunctional appeal, often worn to signify early tech enthusiasm in school settings.^[50] By the 1990s, its robust form aligned with grunge and emerging streetwear trends, though specific adoption in hip-hop leaned more toward similar Casio digitals for their affordable edge. The 2020s have seen a revival through nostalgia-driven streetwear, where the retro-futuristic silhouette of models like the CA53W is reevaluated for its blend of utility and vintage charm, appearing in urban outfits that mix Y2K elements with modern minimalism.^[51] Celebrity endorsements have bolstered the Databank's cultural footprint, with tennis icon Serena Williams frequently spotted wearing the CA53W model during matches and public appearances, embracing its practical yet iconic vibe. This aligns with broader admiration from figures like Bill Gates, who has worn various Casio pieces, reinforcing the brand's association with innovative minds, though Databank specifics highlight its appeal to athletes and performers valuing durability over ostentation.^[52] Culturally, the Databank symbolizes 1980s optimism in personal tech, predating smartphones while offering on-wrist organization that now evokes nostalgia for analog-digital hybrids. It has inspired memes stereotyping "calculator watches" as geeky relics, often riffing on their outdated yet endearing functionality in online humor.^[53] Peak popularity surged in the 1980s through media exposure, waned in the 2000s with mobile tech, and resurged in the 2020s via vintage TikToks and retro fashion, cementing its role as a bridge between eras.^[54]

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https://www.ebay.com/b/Casio-Databank-1990-1999-Year-Manufactured-Wristwatches/31387/bn_7116835204
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Top 10 Most Iconic Watches To Appear In Movies - AskMen
Apr 18, 2017 · The Casio CA53W Twincept Databank from 'Back to the Future' ... Michael J. Fox's Marty McFly rocks the Casio wristwatch/calculator in one of the ...
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Vintage Casio AMW-320 watch experiences and memories
May 1, 2024 · The Casio DBC32-1A! This is the same exact model worn by actors Jack Quaid in Season 1 of the TV series, "THE BOYS" and Dev Patel in the 2015 ...Missing: fashion | Show results with:fashion<|control11|><|separator|>
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The Cyberpunk Fashion Aesthetic - shellzine
Feb 9, 2021 · Cyberpunk as a style is a fashion aesthetic inspired by costumes and imageries presented in iconic media that fall within the cyberpunk genre.<|separator|>
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Casio Calculator Watch a status symbol of the 80's but what status?
Dec 31, 2024 · In the basic school on the 80s it was a status symbol between the classmates. Of course we have 9 years old.
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Retro-futuristic design is in season! What are the 5 ... - otokomae
Casio has produced a number of digital watches, but the ” Databank ” stands out from the crowd and is being reevaluated. The retro-futuristic design that ...<|separator|>
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Why the Coolest Celebrities on the Planet Are Wearing These $20 ...
Nov 26, 2019 · Figures like Bill Gates and Robert Mueller also famously wear Casio watches. These two make a bit more sense: the super-affordable and practical ...
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Not sure if memes are allowed here but that is so me : r/casio - Reddit
Aug 26, 2021 · Inspiration for this meme came from a 1987 movie called Planes, Trains And Automobiles. Where near the end you can see John Candy trading his Casio watch.Do we have memes here? : r/casioThere are still many more : r/memesMore results from www.reddit.comMissing: cultural | Show results with:cultural
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Digital Love: The Inside Story of Casio Watches, 50 Years Later
Dec 5, 2024 · Casio released its first calculator watch, the C-80, in 1980. A follow-up, the Databank Telememo CD-40, came in 1984 and quickly became the ...