Casio Watch G-Shock GBM-2100A-1A2ER

Basic Information

Case size (L× W× H)

49.3 × 44.4 × 11.9 mm

Weight

72 g

Case and bezel material

Resin (Bio-based) / Stainless steel

Band

Bio-based resin band

Construction

Shock Resistant

Water resistance

200-metre water resistance

Power supply and battery life

Tough Solar (Solar powered)

Smartphone Link/App Connectivity Features

Smartphone Link feature

Mobile link (Wireless linking using Bluetooth®)

Apps

CASIO WATCHES

App connectivity feature

Auto time adjustment

Easy watch setting

Approximately 300 world time cities

Time & place

Reminder

Phone finder

Exterior

Glass

Mineral Glass

Compatible band size

145 to 215 mm

Other

Neobrite

Watch Features

World time

World time 38 time zones (38 cities + coordinated universal time), auto summer time (DST) switching, home city/world time city swapping

Stopwatch

1/100-second stopwatch Measuring capacity: 00'00''00 to 59'59''99 (for the first 60 minutes) 1:00'00 to 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, lap/split time

Timer

Countdown timer Measuring unit: 1 second Countdown range: 60 minutes Countdown start time setting range: 1 second to 60 minutes (1-second increments and 1-minute increments)

Alarm/hourly time signal

5 daily alarms

Hourly time signal

Light

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)

Light colour

LED: White

Calendar

Full auto-calendar (to year 2099)

Mute feature

Button operation tone on/off

Energy saving feature

Power Saving (display goes blank to save power when the watch is left in the dark)

Battery display/alert

Battery level indicator

Run time

Approx. battery operating time: 7 months on rechargeable battery (operation period with normal use without exposure to light after charge) 18 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)

Accuracy

Accuracy: ±15 seconds per month (with no mobile link function)

Other features

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

12/24-hour format

Date/month display swapping

Day display (days of the week selectable in six languages)

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