G-SHOCK, the tough watch that has continued to evolve in pursuit of ever-increasing strength since its launch in 1983, is introducing a metal-covered model with smartphone link and Tough Solar power while maintaining the slim size characteristic of the 2100 series.
The GBM-2100, which retains the octagonal shape of the 2100 series but has a metal bezel, smartphone link and Tough Solar, is available in three colors: standard black, blue with vapor deposition coating, and green dial, and the band is made of biomass plastic, making it an environmentally friendly product.
This model can be used in a wide range of situations, from casual to business.
The GBM-2100 is an advanced model of the metal-covered 2100 series that combines toughness with a stylish design.

- Shock-resistant construction
・ Tough Solar (solar charging system)
- 20 ATM water resistance
- Mobile Link function (function linkage with compatible mobile phones via Bluetooth® communication)
- Needle retraction function (When the needle overlaps with the LCD display and is difficult to see, the needle can be temporarily retracted from above the LCD display)
World time: 38 cities (38 time zones, daylight saving time automatic setting function) + UTC (Coordinated Universal Time), home city swap function
Stopwatch (1/100 seconds (less than 1 hour)/1 second (more than 1 hour), 24 hour counter, with lap/split
- Timer (set unit: 1 second, maximum set: 60 minutes, measured in 1 second units)
- 5 time alarms - Hourly time signal
- Battery indicator display
- Power saving function (display turns off after a certain period of time in a dark place to save power)
- Fully automatic calendar
- 12/24 hour display switching
- Operation sound ON/OFF switching function
- Date display (month/day display switching)
- Day of the week display (switchable between 6 languages: English, Spanish, French, German, Italian, and Russian)
Double LED light: LED light for dial (Super Illuminator, afterglow function, afterglow time switch (1.5 seconds/3 seconds)), LED backlight for LCD (Super Illuminator, afterglow function, afterglow time switch (1.5 seconds/3 seconds))
・ Operating time from full charge without solar power generation When using functions: Approximately 7 months When in power saving mode: Approximately 18 months * When not linked to a smartphone, it operates with normal quartz accuracy (average monthly difference of ±15 seconds)



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Casio  Analog-Digital  wristwatch  Silver  G-Shock GA2100  G-Shock GM2100