Casio G-SHOCK GM-2100 (with Octagonal Metal Bezel)

The new GM-2100 is based on the Casio G-SHOCK GA-2100, which is popular for its octagonal shape and streamlined design, but now incorporates a metal bezel for an even more stylish look.

Casio G-SHOCK GM-2100 (with Octagonal Metal Bezel)

Released in 2019, the base-model GA-2100 inherited the concept of the DW-5000C, the very first G-SHOCK, but was a digital-analog combination model with a slim profile and streamlined design.

Casio G-SHOCK GM-2100 (with Octagonal Metal Bezel)

With its distinct octagonal shape and straightforward design, the GA-2100 has been a popular choice worldwide, particularly among young people.

Casio G-SHOCK GM-2100 (with Octagonal Metal Bezel)

The new GM-2100 retains the streamlined form and slim profile of the GA-2100, but adds a new forged metal bezel to give the watch a sharper look.

Casio G-SHOCK GM-2100 (with Octagonal Metal Bezel)

A round hairline finish is applied to the top surface of the bezel and a mirror polish to the sides, giving it a beautiful metallic gleam. Options with blue-gray IP (GM-2100N) and dark gray IP (GM-2100B) bezels are available, to suit any smart style.

The dials are treated with a vapor deposition finish in new navy blue, green, and red hues to achieve appealing metallic color schemes. The watch band employs a square dot texture with incremental variations in dot size, resulting in a sharp look to match the face design.

Technical details

Model: Casio G-SHOCK GM-2100 (with Octagonal Metal Bezel)

GM-2100-1AER: Black dial
GM-2100N-2AER: Navy blue dial
GM-2100B-3AER: Green dial
GM-2100B-4AER: Red dial

Size of Case: 49.3 × 44.4 × 11.8 mm
Construction: Shock-resistant
Water Resistance: 20 bar

World Time
48 cities (31 time zones, daylight saving on/off) and Coordinated Universal Time (UTC)

1/100 second (00’00″00 to 59’59″99) / 1 second (1:00’00” to 23:59’59”); measuring capacity: 23:59’59.99″; 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 second to 24 hours; 1-second accuracy

5 daily alarms; hourly time signal

Other Functions
Full auto-calendar; 12/24-hour format; button operation tone on/off; hand shift feature; double LED light (Super Illuminator, afterglow with selectable illumination duration: 1.5 or 3 seconds)

Accuracy at Normal Temperature
±15 seconds per month

Battery Life
Approx. 3 years on SR726W × 2

Total Weight
Approx. 72g