
G-Shock GM-B2100BD-1A Full Metal
Ref.: GM-B2100BD-1A
The G-Shock GM-B2100BD-1A takes the classic G-Shock octagonal design and dials it up a notch. With a sleek, full-metal black ion-plated case (also available in silver and gold colors) and bracelet, it’s as tough as it looks. Packed with modern tech like Bluetooth pairing and Tough Solar power, this watch isn’t just about the looks, it’s made to keep up with whatever life throws at you. With 200m water resistance and shock resistance, it’s built for action, day in and day out.






Case Details
All the info on the case construction, dimensions, shape, and finishing.
- Case Diameter
- 44.4mm
- Lug-to-Lug Distance
- 49.8mm
- Lug Width
- Integrated Bracelet
- Case Thickness
- 12.8mm
- Caseback Style
- Closed Back
- Lugs Drilled?
- Yes
- Case Shape
- Octogonal
- Case Material
- 316L Stainless Steel
- Case Finishing
- Brushed, Ion Plated, Satin Polished
- Weight
- 165g
- Water Resistance
- 20 ATM
Movement Details
Technical specs and extras under the hood.
- Movement Type
- Digital
- Movement Name
- Casio Module 5691
- Frequency
- Digital
- Complications & Features
- 12/24 Hour, Alarm, Battery Level Indicator, Countdown Timer, Date, Day, Full Auto-Calendar, LED Light, Month, Power Saving, Stopwatch, World Timer
- Shock Absorption
- Shock Resistant
- Battery Type
- Tough Solar
Dial Details
Color, material, lume, and other dial features.
- Dial Color
- Black
- Dial Characteristic
- Linear Pattern
Crystal Details
Crystal material, type, and coatings.
- Crystal Material
- Mineral Glass
Crown Details
Crown type and any additional crown functions.
- Crown Type
- Push-Pull
General Details
Brand, origin, price range, and more.
- Brand
- Casio
- Country of Origin
- Japan
- Watch Type
- Digital Sports
- Price Range (USD)
- $