·Resin Glass

·100-meter water resistance

·Case / bezel material: Resin

·Resin Band

·Date display

·Regular timekeeping

·Resin Glass

·100-meter water resistance

·Case / bezel material: Resin

·Resin Band

·Date display

·Regular timekeeping Analog: 3 hands (hour, minute, second)

·Accuracy: ±20 seconds per month

·Approx. battery life: 10 years on CR2012

·Size of case: 44.6 × 41.1 × 13.4 mm

·Total weight: 36 g

HDD-S100-1AV

Mineral Glass

200-meter water resistance

Case / bezel material: Resin

Resin Band

Solar powered

Battery-less (requires no battery replacement)

1/100-second stopwatch

Measuring capacity: 59'59.99''

Measuring modes: Elapsed time, split time, 1st-2nd place times

Countdown timer

Measuring unit: 1 second

Countdown range: 24 hours

Countdown start time setting range: 1 minute to 24 hours (1-minute increments and 1-hour increments)

5 daily alarms

Hourly time signal

Low battery alert

Auto-calendar (28 days for February)

12/24-hour format

Regular timekeeping: Hour, minute, second, pm, date, day

Accuracy: ±30 seconds per month

Approx. capacitor operating time: 14 days (from full charge to stopping of watch operation under the following conditions: watch not exposed to light, internal timekeeping, 20 seconds of alarm operation per day) on coin type capacitor