Featuring a square face and a vibration alarm, the Casio W-738H-3AV is engineered for daily comfort and active wear with a balanced mid-size resin case.

The large digital display provides instant readability, complemented by an amber LED backlight and intuitive controls including an easily accessible center light button.

Equipped with 100-meter water resistance, dual time, a 1/100-second stopwatch, and a countdown timer, it runs on an approximate 10-year CR2032 battery.

Key Features

Case size (L× W× H)	47 × 42.8 × 13.5 mm
Weight	43 g
Case and bezel material	Resin
Band	Resin Band
Water resistance	100-meter water resistance
Power supply and battery life	Approx. battery life: 10 years on CR2032
Glass	Resin Glass
Compatible band size	145 to 215 mm
World time	Dual time
Stopwatch	1/100-second stopwatch Measuring capacity: 23:59'59.99'' Measuring modes: Elapsed time, split time, 1st-2nd place times Other: 5-second countdown auto start
Timer	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)
Alarm/hourly time signal	Daily alarm, Hourly time signal
Light	LED backlight Afterglow
Light color	LED:Amber
Calendar	Full auto-calendar (to year 2099)
Mute feature	Button operation tone on/off
Accuracy	Accuracy: ±30 seconds per month
Other features	12/24-hour format, Regular timekeeping: Hour, minute, second, pm, month, date, day, Vibe alert (daily alarm, hourly time signal, countdown timer time up, stopwatch auto start countdown)

Highlights

10 bar water resistant
Long life battery
Sporty design
Easy to see in darkness

Frequently asked questions

What is the water resistance rating of this watch?

This watch has a 100-meter (10 bar) water resistance rating.

What type of battery does the watch use and how long does it last?

It operates on a CR2032 battery with an approximate battery life of 10 years.

What features work with the vibration alert?

The vibe alert functions with the daily alarm, hourly time signal, countdown timer time up, and stopwatch auto start countdown.

What are the dimensions and weight of the watch?

The case measures 47 × 42.8 × 13.5 mm and the total weight is 43 g.

What materials are used for the case, band, and glass?

The case, bezel, and band are made of resin, and the watch features resin glass.

What is the compatible wrist size range for the band?

The band is compatible with wrist sizes ranging from 145 to 215 mm.

Casio Retro Black Dial Dual Time Watch W-738H-3AVDF