The Casio F91W captures the quintessential design of 1980s digital watches with its iconic rectangular case, clear digital display, and practical features. This watch exemplifies an era when digital timepieces were a technological breakthrough. Casio has successfully retained its vintage charm while integrating modern functionality, making it a timeless accessory cherished by both retro enthusiasts and contemporary users.
Pictured here is the classic F91W worn by the character Dr. Michael Morbius, played by Jared Leto, in the movie Morbius.

The Casio F91W: A Brief History
Since its debut in 1989, the Casio F91W has become a cornerstone in Casio’s line of digital watches. Known for its simplicity, reliability, and affordability, the F91W has garnered a dedicated following worldwide. Its design, characterized by a slim rectangular case and straightforward digital display, evokes a sense of 1980s nostalgia while providing modern practicality.

The F91W’s enduring popularity is attributed to its timeless design and robust functionality. Key features include a daily alarm, a 1/100-second stopwatch, an hourly time signal, and an automatic calendar. These are all powered by a long-lasting battery that can last up to seven years. Additionally, the watch is water-resistant, enhancing its durability for everyday use.
Casio F91W Specs
The watch features a durable resin case and band, offering both comfort and longevity. Here are its key specifications:
Case and Band Material: | The watch features a durable resin case and band, providing both comfort and longevity. |
Digital Display: | The digital display provides the time in 12-hour or 24-hour format, along with the day and date for easy reference. |
Alarm: | A daily alarm function helps keep you on schedule. |
Stopwatch: | A 1/100-second stopwatch with a capacity of up to 59 minutes and 59.99 seconds is ideal for timing various activities. |
Calendar: | An automatic calendar ensures the date is always accurate. |
LED Light: | A micro light illuminates the display for readability in low-light conditions. |
Water Resistance: | The watch is water-resistant, suitable for everyday use but not intended for swimming or diving. |
Battery Life: | Powered by a CR2016 battery, the Casio F91W offers an impressive battery life of approximately 7 years. |
Dimensions and Weight: | The case measures 37.5 mm x 33.5 mm x 8.5 mm, and the watch weighs approximately 21 grams, ensuring a comfortable fit on the wrist. |


Where to buy Casio F91W
The Casio F91W is available in 10 different colors, with prices ranging between $22.95 and $29.95.









Where to Watch Free Guy
Tomatometer 15%
Audience Score 71%
Score courtesy of Rotten Tomatoes
Custom Casio F91W
Below are some of the customs I made using F91W as the base watch.

