Casio G-Shock Metal GMC-B2100Y-1AER

Immerse yourself in the sophisticated gleam of the GMC-B2100Y, a full-metal 2100-style chronograph that carries on the legacy of the original G-SHOCK.

The design evokes the original 1983 model, with its distinctive octagonal bezel and textured strap, reinterpreted here in stainless steel for the case, bezel, and structural details. Fine resin elements are inserted between the case and bezel, ensuring shock resistance while maintaining an all-metal aesthetic. The bezel, crafted through forging, cutting, and polishing, features a refined hairline finish on the top surface and a mirror polish on the sides.

The indexes and dial elements, finished with vapor deposition, display extreme attention to detail thanks to high-precision workmanship. The soft and comfortable silicone strap is reinforced with a urethane film for greater wear resistance, while the transparent bottom part with a gunmetal finish creates an elegant contrast with the case.

The high-density construction allows for a thin module, without sacrificing advanced functionalities. Bluetooth® connectivity enables synchronization with smartphones for always-precise time adjustment, while the Tough Solar system, high-brightness LED light, and numerous integrated functions complete a timepiece that combines distinctive style with maximum practicality.

Basic Information
Case size: 51.3 × 46.3 × 12.4 mm
Weight: 108 g
Case and bezel material: Stainless steel
Strap: Durable silicone (resin)
Construction: Shock resistant
Water resistance: Up to 20 bar

Time Adjustment
Bluetooth®: Smartphone link with automatic time adjustment

Power Supply
System: Tough Solar (solar powered)

Connection and App
Mobile Link: Wireless linking via Bluetooth®
App: CASIO WATCHES
Functions: Automatic time adjustment, easy watch setting, World Time (approx. 300 cities), time & place, phone finder

Exterior
Glass: Mineral
Crown: Screw-lock
Adjustable strap: 145 to 215 mm
Details: Neobrite

Watch Functions

World Time:
second time zone with fast city change

Stopwatch:
1-second unit
capacity up to 23:59:59
modes: elapsed time, split time

Timer:
countdown up to 24 hours
setting range 1 minute to 24 hours

Alarms and Signals:
daily hourly time signal

Illumination:
LED Super Illuminator light
afterglow
LED color white

Calendar:
full auto-calendar up to 2099

Power Saving
power saving function with hands stopping in the dark
battery level indicator

Battery Life
approx. 5 months on normal use without light
up to 18 months in power saving mode

Accuracy
±15 seconds per month (without Mobile Link)

Other Features
analog format with 3 hands (hour, minute, second)
multi-dials for mode, battery, second time zone, stopwatch, timer, and alarms
date and day display