Description
The Casio F-91W-1 is an undisputed legend of digital horology, celebrated for its utilitarian design and legendary durability. This lightweight icon features a clear LCD screen with an integrated microlight, daily alarm, and a high-precision 1/100-second stopwatch. Its compact resin case and flexible strap offer a comfortable, unobtrusive fit, while the signature seven-year battery life ensures decade-spanning reliability. As a masterclass in functional minimalism, it remains the ultimate choice for those who value an authentic, no-nonsense timepiece that simply works.
Technical Specifications
- Dimensions: 38.2 x 35.2 x 8.5 mm
- Weight: 21g
- Approx. battery life: 7 years on CR2016
- Case and band material: Resin (Black)
- Crystal: Mineral glass
- Water Resistance: Splash resistant (Daily use)
- Accuracy: ±30 seconds per month
- Stopwatch: 1/100-second stopwatch Measuring capacity: 59’59.99” Measuring modes: Elapsed time, split time, 1st-2nd place times
- Alarm/hourly time signal: Yes, Daily alarm and Hourly time signal
- Calendar: Auto-calendar (set at 28 days for February)
- Light: LED light
- Display: Digital (12/24 hour format)
- Warranty: 12 Months








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