Casio F91W Digital Sports Watch, Black, 1 Count (Pack of 1),
Product Overview
The Casio F91W Digital Sports Watch is a time-tested, minimalist timepiece that has earned its reputation for dependability and practical design. Encased in a durable black resin shell with a matching resin strap, this watch combines simplicity with essential functionality, making it a trusted choice for daily wear across generations. Weighing just 20 grams and measuring 37.5 x 33.5 x 9.5mm, it sits comfortably on the wrist without adding bulk, ideal for students, professionals, fitness enthusiasts, and anyone who values a lightweight, no-nonsense watch. Its straightforward interface and robust build ensure consistent performance whether you’re timing a morning jog, managing a busy workday, or simply keeping track of time throughout your routine. With a battery life of approximately seven years using a standard CR2016 coin cell, the F91W minimizes maintenance while delivering reliable timekeeping over the long term.
Key Features
- Water Resistant – Engineered to handle everyday moisture exposure, including splashes from handwashing, light rain during outdoor activities, or brief immersion in water. While not suitable for swimming or diving, this level of protection ensures the watch remains functional during typical daily encounters with water.
- Micro Light – Features an electroluminescent backlight that provides a soft, even glow across the digital display. This allows for clear visibility in low-light environments such as dimly lit rooms, early morning commutes, or nighttime use without disrupting night vision.
- Daily Alarm – Equipped with a customizable alarm that can be set to sound once per day at a chosen time. This function is useful for wake-up calls, medication reminders, or scheduling important recurring tasks, helping users maintain structure throughout their day.
- 1/100 Second Digital Stopwatch – Offers precise timing with hundredth-of-a-second resolution, making it suitable for tracking workout intervals, sports training, or any activity that benefits from accurate elapsed time measurement. The stopwatch function is easy to start, stop, and reset with intuitive button controls.
- Hourly Time Signal – Emits a short audible beep at the top of every hour. This feature supports time awareness during meetings, study sessions, or timed routines, allowing users to stay on schedule without constantly checking the display.
- Auto Calendar – Automatically adjusts for varying month lengths and accounts for leap years, ensuring the date remains accurate year-round without requiring manual updates. This eliminates the hassle of resetting the calendar at the end of shorter months.
- High Accuracy – Maintains time within ±30 seconds per month, providing consistent and reliable performance for everyday use. This level of precision ensures the watch stays aligned with standard timekeeping without frequent corrections.
Technical Specifications
- Model: Casio F91W
- Color: Black
- Pack Size: 1 Count (Pack of 1)
- Strap Type: Resin
- Water Resistance: Yes
- Backlight: Micro Light
- Alarm: Daily Alarm
- Stopwatch: 1/100 second digital stopwatch
- Time Signal: Hourly
- Calendar: Auto Calendar
- Accuracy: ±30 seconds per month
- Battery Type: CR2016
- Battery Life: Approximately 7 years
- Module: 593
- Case Dimensions: 37.5 x 33.5 x 9.5mm
- Total Weight: 20g
Benefits & Use Cases
The Casio F91W excels in versatility, serving as a dependable tool across a variety of everyday scenarios. Its compact dimensions and featherlight weight make it comfortable for extended wear, whether you’re typing at a desk, walking between classes, or engaging in light physical activity. The stopwatch function is particularly valuable for runners, gym-goers, or anyone tracking exercise performance, offering precise timing down to the hundredth of a second. The water resistance adds practical reassurance during rainy commutes or accidental spills, while the long battery life reduces the frequency of replacements—ideal for those who prefer low-maintenance gear. The hourly time signal supports punctuality in structured environments like offices or classrooms, and the auto calendar ensures you never miss a date change. With its simple operation and resilient construction, the F91W performs reliably in urban commutes, outdoor walks, or casual weekend activities.
Important Notes
This product includes one Casio F91W watch in a pack of 1, complete with the attached black resin strap. The battery is user-replaceable and uses a standard CR2016 coin cell. While the watch is water resistant, it is not intended for swimming, diving, or prolonged submersion. Avoid exposure to extreme heat, cold, or harsh chemicals, as these may affect the resin case or strap over time. Due to its compact case size—37.5mm in width and only 9.5mm thick—potential buyers with larger wrists may want to consider the fit before purchasing. The watch is designed for everyday practicality and long-term durability, offering essential functions without unnecessary complexity.
