Introducing the masterpiece design model with rainbow color accents from G-SHOCK's full metal series, which has pursued toughness since its birth in 1983 and celebrated its 40th anniversary.

[Shockproof structure & 20 ATM waterproof] Adopts a shockproof structure that is resistant to shock and vibration.

Also equipped with 20 ATM water resistance, allowing use in a variety of locations and situations.

[Tough Solar] Casio's unique solar charging system that stably operates various functions that are subject to heavy loads by combining a solar panel that generates electricity even with a small amount of light and a large-capacity secondary battery.
[Mobile link function] Functions can be linked with compatible smartphones via BluetoothⓇ communication.

[Other product specifications] Please check the description column

This is a masterpiece design model with rainbow color accents from the G-SHOCK Full Metal series, which has pursued toughness since its birth in 1983 and celebrated its 40th anniversary.

This product incorporates the desire to freely express one's own style and values, and incorporates rainbow colors into the design accents.

The base model GM-B2100 is a new standard for G-SHOCK developed to expand the possibilities of tough analog watches, inheriting the concept of DW-5000 and AW-500.

This design, which strongly reflects G-SHOCK's philosophy, opens up new horizons with the latest technology.

A watch with rainbow colors as an accent

・Shock-resistant structure
・ Tough Solar (solar charging system)
・20 ATM waterproof function
・ Mobile link function (function linked with compatible mobile phone via Bluetooth® communication)
- Needle retraction function (if the hands overlap the LCD display and are difficult to see, you can temporarily retract the hands from above the LCD display)
・World Time: 38 cities around the world (38 time zones, automatic summer time setting function) + UTC (Coordinated Universal Time) time display, home time city switching function
・ Stopwatch (1/100 second (less than 1 hour)/1 second (more than 1 hour), 24 hour meter, with lap/split)
- Timer (set unit: 1 second, maximum set: 60 minutes, measured in 1 second increments)
・5 time alarms/time signal
・Battery indicator display
- Power saving function (turns off the display after a certain period of time in a dark place to save power)
・Full auto calendar
・12/24 hour display switching
・ Operation sound ON/O FF 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 (with super illuminator, afterglow function, afterglow time switching (1.5 seconds/3 seconds)), LED backlight for LCD section (super illuminator, afterglow function, afterglow time switching (1.5 seconds)) seconds/3 seconds)
・When using the drive time function without solar power generation from full charge: Approximately 7 months When using power saving mode: Approximately 18 months* When not linked to a smartphone, normal quartz accuracy (average monthly difference ±15 seconds) ) works with