WS-2100H-1A

Battery Life / Accuracy
Approximately 3 years (+/-30 seconds per month)

Crystal
Resin glass

Light
LED light (selectable illumination duration, afterglow)

Case & Band Material
Resin case with resin band

Water Resistance
100m

Case Size
Thickness: 14.6 mm
Diameter: 48.1 mm
Length: 49.9 mm

Other Specifications
Dual time (home time swapping)
1/100-second stopwatch
Countdown timer
5 daily alarms
Hourly time signal
Full auto-calendar (to year 2099)
Button operation tone on/off
12/24-hour format
Regular timekeeping (digital display)