Casio G-Shock Digital Quartz Flash Alert World Time Black Resin Watch GD400-1

Shock Resistant
200M Water Resistant
LED Backlight (Super Illuminator) Auto Light switch, selectable illumination duration (1.5 seconds or 3 seconds), afterglow
Flash alert Flasher with buzzer that sounds for alarms, hourly time signal, countdown timer time-up alarm
Multi Time (4 different cities)
5 Daily Alarms (One Time or Daily)
Hourly Time Signal
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)
Other: Selectable flash alert and direct start from timekeeping mode
Full Auto Calendar (pre-programmed until the year 2099) 12/24 Hour Formats
Low Battery Warning
Button operation tone on/off
Accuracy: ±15 seconds per month
Battery: CR2032 Approx. battery life: 3 years
Module 3434
Shock Resistant
Water Resistant to 200 Meters
Super Illuminator Light
World Time
5 Daily Alarms
Stopwatch
Countdown Timer
12/24 Hour Formats