Key Specs
Case Size: 55 × 51.9 × 18.3 mm
Weight: 70 g
Material: Resin case & bezel
Glass: Mineral glass
Build & Durability
Band: Resin band
Construction: Shock resistant, magnetic resistant
Water Resistance: 200 m
Performance
Battery: Approx. 3 years (SR927W × 2)
Accuracy: ±15 seconds/month
Time Functions
World Time: 31 time zones (48 cities + UTC)
DST on/off
Home/World city swap
Stopwatch
1/100-second
Capacity: 23:59'59.99''
Modes: Elapsed time, split time
Timer
Countdown timer (1 sec unit)
Range: 1–60 minutes
Auto-switch to elapsed time after countdown
Alarms & Signals
5 daily alarms (1 snooze)
Hourly time signal
Display & Lighting
LED Light (Amber)
Auto light switch
1.5 / 3 sec duration
Afterglow
Calendar & Controls
Full auto-calendar (to 2099)
Button tone on/off
Additional Features
12/24-hour format
Hand shift (clears digital display view)
Timekeeping
Analog: Hour, minute (moves every 20 sec), timer dial
Digital: Hour, minute, second, PM, month, date, day - Design number: GA400
