CASIO F-91WM-7A Men's Digital Sport Watch with Resin Band

The CASIO F-91WM-7A is a men's digital sport watch with a resin case and band, made for everyday wear and light activity. Its compact build and low weight suit anyone who wants a simple timepiece with practical functions, including a stopwatch, alarm and LED light.

This digital sport watch for men keeps time within ±30 seconds per month and runs on a CR2016 battery for approximately 7 years. The display sits under a resin glass cover, and the LED light helps you read the screen in dim conditions. A 1/100-second stopwatch records elapsed, split and 1st-2nd place times up to 59 minutes and 59.99 seconds. You also get a daily alarm, an hourly time signal, an auto-calendar that handles months of 28 to 31 days, and a choice of 12 or 24-hour format.

Key features and benefits of the CASIO F-91WM-7A

• Resin case and band: The case and strap are made from resin, a lightweight plastic material. That keeps the watch comfortable for full days and helps it handle ordinary knocks.
• Resin glass: The face is covered with resin glass. It protects the digital display from scratches while keeping the overall weight down.
• Water resistance: The watch is water resistant, so splashes and brief immersion are not a problem during daily tasks. It is not built for swimming or diving.
• LED light: An LED light illuminates the display in low light. You can check the time in a dark room or at night without another light source.
• 1/100-second stopwatch: The stopwatch measures in 1/100-second steps up to 59'59.99 and records elapsed, split and 1st-2nd place times. It suits timing workouts, short events or intervals.
• Daily alarm: A daily alarm can sound at a set time each day. It works as a simple reminder for a start time or appointment.
• Hourly time signal: The hourly time signal chimes on the hour. It gives a prompt as time passes without needing to check the screen.
• Auto-calendar: The auto-calendar adjusts for months with 28 to 31 days. You do not need to reset the date at the end of shorter months.
• 12/24-hour format: You can switch the display between 12-hour and 24-hour time. That lets you use the format you already read most easily.
• Accuracy: Timekeeping is rated within ±30 seconds per month. That gives you a dependable reference for daily schedule keeping.
• Battery life: A CR2016 battery powers the watch for approximately 7 years. Long battery life means fewer replacements.
• Compact size and weight: The case measures 38.2 × 35.2 × 8.5 mm and the watch weighs 21 g. The small, light body sits unobtrusively on the wrist.

Who the digital sport watch is for

The CASIO F-91WM-7A suits men who want a digital sport watch for men that handles daily routines without fuss. It is a good match for workdays, school, errands and light outdoor activity, and its stopwatch and alarm add useful structure to exercise or timed tasks. The compact resin build keeps it comfortable for long wear, while the water resistance covers splashes and brief immersion. Choose it when you value clear digital functions, a low-maintenance battery and a watch that does not need special handling for ordinary days.

• Everyday wear for work, school or errands
• Light sports and outdoor activities
• Timing workouts, intervals or short events
• Travel when you want a durable, low-maintenance watch
• Casual wear where a compact digital display is useful

Less suitable if: you need a watch for swimming or diving, because the CASIO F-91WM-7A is water resistant but not designed for prolonged water exposure.

Digital sport watch specifications

Using and caring for the CASIO F-91WM-7A

Wear the CASIO F-91WM-7A as your daily watch and set the alarm, hourly signal and time format to match your routine. The auto-calendar handles month lengths, so the date needs no end-of-month reset. After contact with sweat or dirt, wipe the resin case and band with a soft damp cloth, then dry them. Keep the watch away from solvents and strong chemicals, which can damage resin parts. Although it is water resistant, avoid swimming, diving and long immersion.

• Set the daily alarm and hourly time signal only when you want them, so the watch stays quiet at other times.
• Use the LED light for short reads in dim light rather than as a torch.
• Rinse the resin band with fresh water after heavy sweat, then dry it with a soft cloth.
• Check the 12/24-hour setting after a battery change so the display matches your preference.

How to choose the right digital sport watch

A digital sport watch for men should fit your wrist and your daily routine. The CASIO F-91WM-7A measures 38.2 × 35.2 × 8.5 mm and weighs 21 g, so it sits lightly on the wrist. Its resin case, band and glass keep the build light; resin is a plastic material that resists everyday knocks. Check the functions you need: this model has a 1/100-second stopwatch, daily alarm, hourly time signal, auto-calendar and 12/24-hour format. For water use, it is water resistant for splashes and brief immersion, but not for swimming or diving. Battery life is approximately 7 years on a CR2016 cell.

Frequently asked questions

What is the CASIO F-91WM-7A made of?

The CASIO F-91WM-7A has a resin case, a resin band and a resin glass cover over the display. Resin is a lightweight plastic material that helps keep the watch comfortable and reduces weight.

How large is the CASIO F-91WM-7A?

The case measures 38.2 × 35.2 × 8.5 mm and the watch weighs 21 g. That compact size is intended to sit lightly on the wrist for everyday wear.

Can I swim with the CASIO F-91WM-7A?

No. The CASIO F-91WM-7A is water resistant for splashes and brief immersion, but it is not designed for swimming or diving. Avoid prolonged water exposure.

What can the stopwatch time?

The 1/100-second stopwatch runs up to 59 minutes and 59.99 seconds and records elapsed, split and 1st-2nd place times. It is useful for workouts, intervals and short events.

How long does the battery last?

The CR2016 battery has an approximate life of 7 years. That long life reduces how often the battery needs replacing.

Does the watch have an alarm and hourly signal?

Yes. The CASIO F-91WM-7A includes a daily alarm and an hourly time signal. You can use them as simple time prompts during the day.

Does the date adjust for short months?

Yes. The auto-calendar adjusts for months with 28 to 31 days, so you do not need to reset the date at the end of February or other short months.

Who is the CASIO F-91WM-7A for?

It suits men who want a compact digital sport watch for everyday wear, light sports and travel. The resin build, stopwatch and alarm keep it practical without adding bulk.