Casio W-737 — Dual Time & 10-year Battery

Rating: 4 out of 5.
Battery Years★★★★★
How did we compose this rating? Enjoy our calculations →

About W-737 in Short. Features include a resin band, resin glass, LED backlight with afterglow, dual time, 1/100 second stopwatch, countdown timer, daily alarm, hourly time signal and others.

General Information

Price$20  *average Amazon Price, we may earn commission from purchases
Year of First Release2020
Model RangeCasio Digital Collection
Battery Type CR2025 (Casio Batteries)
Manual3488 (official)

W-737 Model Range *may be updated

*Want to be the first to know about new Collection Updates? Here we store all recent Monthly Collection Updates →

Other Casio Digital W Watches *similar by price and functions but different by cases

These are not all Casio Digital W Series. Here is a list of All Casio Digital W Watches →

Casio W-737 on the wrist!

Casio W-737 Display Guide *for key functions only. For you to know how it works))

Timekeeping Mode

To set the time and date
1. In the Timekeeping Mode, hold down A until the seconds digits flash on the display because they are selected.
2. Press C to change the selection.
3. While the seconds digits are selected (flashing), press D to reset the seconds to 00.
If you press D while the seconds count is in the range of 30 to 59, the seconds are reset to 00 and 1 is added to the minutes. If the seconds count is in the range of 00 to 29, the minutes count is unchanged.
4. While any other digits (beside seconds) are selected, press D to increase the number or B to decrease it. While the 12/24-hour format setting is selected, press D or B to toggle it between 12 and 24.
5. After you set the time and date, press A to return to the Timekeeping Mode.

Countdown Timer

To use the countdown timer
1. Press D while in the Countdown Timer Mode to start the countdown timer.
2. Press D again to stop the countdown timer.
3. Stop the countdown timer and then press B to reset the countdown time to its starting value.
– When the end of the countdown is reached and auto-repeat is turned off, the alarm sounds for 10 seconds or until you stop it by pressing any button. The countdown time is automatically reset to its starting value after the alarm stops.


The stopwatch lets you measure elapsed time, split times, and two finishes.
– The range of the stopwatch is 23 hours, 59 minutes, 59.99 seconds. You can also have an alarm sound when a target time is reached.
– The Stopwatch Mode also features an Auto-Start function.

Dual Time

To set the Dual Time

  1. Hold down A while in the Dual Time Mode. The hour digits flash on the display because they are selected.
  2. Press C to change the selection (Hour – (C) – Minutes)
  3. Press D to increase the selected digits and B to decrease them. Holding down either button changes the selection at high speed.
  4. After you set the time, press A to return to the Dual Time Mode.

Official W-737 Specs / Features *for base version W-737

  • Case / bezel material: Resin
  • Resin Band
  • Resin Glass
  • 100-meter water resistance
  • LED backlight
  • Dual time
  • 1/100-second stopwatch
    Measuring capacity: 23:59’59.99″
    Measuring modes: Elapsed time, split time, 1st-2nd place times
    Others: target time alarm, auto start
  • Countdown timer
    Measuring unit: 1/10 second
    Countdown range: 24 hours
    Countdown start time setting range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments)
    Others: Auto-repeat, progress beeper on/off
  • Daily alarm
  • Hourly time signal
  • Full auto-calendar (to year 2099)
  • 12/24-hour format
  • Regular timekeeping: Hour, minute, second, pm, month, date, day
  • Accuracy: ±30 seconds per month
  • Approx. battery life: 10 years on CR2025
  • Size of case : 51.9×45.7×14mm
  • Total weight : 46g

You ask, we answer…

What does 100-meter water resistance in W-737 mean?

The watch is good for swimming but not for deep diving.

What type of battery does W-737 have?

10 years CR2025.

What does Stopwatch in W-737 do?

Measuring capacity: 23:59’59.99″
Measuring modes: Elapsed time, split time, 1st-2nd place times.