G-Shock GM-2100 / GM-2110 series

Watch Identification

This is a Casio G-Shock “CasiOak” Metal series watch.
It closely matches the G-Shock GM-2100 / GM-2110 series (often called Metal CasiOak).

Key Features

• Brand: Casio

• Series: G-Shock

• Model family: GM-2100 / GM-2110 (metal bezel & bracelet variant)

• Display type: Analog-Digital

• Dial color: Black

• Case shape: Octagonal (CasiOak design)

• Bezel material: Stainless steel

• Bracelet: Stainless steel (with protective plastic still on — looks brand new)

• Glass: Mineral crystal

Functions

• Shock resistant (true G-Shock protection)

• World Time

• Stopwatch (1/100 sec)

• Countdown timer

• 5 daily alarms

• Hourly time signal

• Auto calendar

• 12/24-hour format

• LED light (Super Illuminator on some variants)

Durability

• Water resistance: 200 meters (20 BAR) — suitable for swimming & snorkeling

• Built for heavy daily wear

Design Notes

• Slimmer G-Shock profile compared to classic bulky models

• Analog hands with digital sub-display

• Sporty yet premium look due to full metal construction

• Very popular as a daily luxury-sport watch

Approximate Specs

• Case size: ~44.4 mm

• Thickness: ~11.8 mm

• Weight: ~140–150 g (metal version)

• Battery life: ~3 years (SR726W ×2)