CASIO G-Shock Octagon Series

This stealthy, all black timepiece embeds the latest carbon core guard technology in a slimmer more refined case. Taking inspiration from the 1983 original model, the DW-5000C, this watch pays homage to the much-loved retro look with its unique octagonal bezel, framing an analog-digital display. As with the GA-2000, the GA-2100 has an interchangeable resin strap for customization with any outfit and occasion. Despite its deceptively compact design, this watch is as durable and tough as any G-SHOCK on offer with 200 meter water resistance and shock resistance.

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)

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

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

Hand shift feature

Full auto-calendar (to year 2099)

12/24-hour format

Button operation tone on/off

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

Accuracy : ±15 seconds per month

Approx. battery life: 3 years on SR726W × 2

This stealthy, all black timepiece embeds the latest carbon core guard technology in a slimmer more refined case. Taking inspiration from the 1983 original model, the DW-5000C, this watch pays homage to the much-loved retro look with its unique octagonal bezel, framing an analog-digital display. As with the GA-2000, the GA-2100 has an interchangeable resin strap for customization with any outfit and occasion. Despite its deceptively compact design, this watch is as durable and tough as any G-SHOCK on offer with 200 meter water resistance and shock resistance.

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)

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

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

Hand shift feature

Full auto-calendar (to year 2099)

12/24-hour format

Button operation tone on/off

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

Accuracy : ±15 seconds per month

Approx. battery life: 3 years on SR726W × 2