Casio G-Shock Duo Metal Watch GMB2100BT-1A

GMB2100BT-1A
A collection of full-metal descendants of the first-ever G-SHOCK — introducing the GM-B2100 with a black bezel highlighting their iconic form.

The striking two-tone black-on-silver colour scheme projects G-SHOCK toughness in a model sure to suit your personal style.
Band:
Solid stainless steel band
One-touch 3-fold Clasp
Case and bezel material: Stainless steel
Case size (L× W× H): 49.8 × 44.4 × 12.8 mm
Construction:
Shock Resistant
Power supply and battery life
Tough Solar (Solar powered)
Time adjustment
Bluetooth: Connects to a smartphone and automatically adjusts the time
Water resistance:
200-meter water resistance