GM-2100B-3ADR x GM-S2100-3ADR

49.3 × 44.4 × 11.8 mm

72 g

Resin / Stainless steel

Resin Band

Shock Resistant

200-meter water resistance

Approx. battery life: 3 years on SR726W X 2

Mineral Glass

Neobrite

World time 31 time zones (48 cities + coordinated universal time), daylight saving on/off

1/100-second stopwatch Measuring capacity: 00'00''00~59'59''99 (for the first 60 minutes) 1:00'00~23:59'59 (after 60 minutes) Measuring unit: 1/100 second (for the first 60 minutes) 1 second (after 60 minutes) 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 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments)

5 daily alarms

Hourly time signal

Double LED light LED light for the face (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow) LED backlight for the digital display (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)

LED:White

Full auto-calendar (to year 2099)

Button operation tone on/off

Accuracy: ±15 seconds per month

12/24-hour format

Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.)

Regular timekeeping: Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (day) Digital: Hour, minute, second, pm, month, date

45.9 × 40.4 × 11 mm

55 g

Resin / Stainless steel

Resin Band

Shock Resistant

200-meter water resistance

Approx. battery life: 3 years on CR1025

Mineral Glass

Neobrite

World Time 31 time zones (48 cities + coordinated universal time), city code display, city name display, daylight saving on/off, auto summer time (DST) switching

1/100-second stopwatch Measuring capacity: 00'00''00~59'59''99 (for the first 60 minutes) 1:00'00~23:59'59 (after 60 minutes) Measuring unit: 1/100 second (for the first 60 minutes) 1 second (after 60 minutes) Measuring modes: Elapsed time, split time

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

Double LED light LED light for the face (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow) LED backlight for the digital display (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)

LED:White

Full auto-calendar (to year 2099)

Button operation tone on/off

Accuracy: ±15 seconds per month

12/24-hour format

Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.)

Regular timekeeping: Analog: 2 hands (hour, minute (hand moves every 20 seconds)) Digital: Hour, minute, second, pm, month, date, day