The Casio G-SHOCK GM-2100-1A-S is a premium analog-digital watch that combines the iconic octagonal G-SHOCK design with a forged stainless steel bezel and a sleek black resin band. Built with G-SHOCK's Carbon Core Guard structure, it delivers exceptional durability while maintaining a slim, comfortable profile. Featuring 200-meter water resistance, dual LED illumination, and versatile everyday functions, it is an excellent choice for business, casual wear, travel, and outdoor adventures. Official specifications are based on Casio's official product documentation.
Key Features
Shock Resistant
Carbon Core Guard structure
200-meter water resistance (20 Bar)
Forged stainless steel octagonal bezel
Analog and digital display
Dual LED Super Illuminator
World Time
1/100-second stopwatch
Countdown timer
5 daily alarms
Full auto-calendar
Hand Shift feature
Timekeeping
Displays:
Hour
Minute
Second
Day
Date
Analog and digital time display
World Time (31 time zones, 48 cities + UTC)
12/24-hour time formats
Full auto-calendar (to 2099)
High-accuracy quartz movement (±15 seconds per month)
Design & Materials
Carbon Core Guard resin case
Forged stainless steel bezel
Black resin band
Buckle closure
Mineral glass
Shock-resistant construction
Slim octagonal profile
Lightweight and comfortable design
Colors
Case: Black
Bezel: Silver-tone Stainless Steel
Band: Black Resin
Dial: Black
Hour Markers: Silver-tone with luminous coating
Hands: Silver-tone with luminous coating
Note: The GM-2100-1A-S features the iconic octagonal "CasiOak" design with a premium forged stainless steel bezel and a classic black resin band, combining refined styling with the legendary durability and everyday functionality of the G-SHOCK 2100 series.
Power
Battery Type: SR726W ×2
Approximate Battery Life: 3 Years
Water Resistance
200 meters (20 Bar)
Suitable for:
Daily hand washing
Showering
Swimming
Snorkeling
Recreational scuba diving
What's Included
Casio G-SHOCK GM-2100-1A-S Watch
Original Casio Box
Instruction Manual
Warranty Card (provided by the authorized distributor)
