Casio G-Shock G-Steel GST-B1000 Series Men's Watch GSTB1000BD-1A

G-STEEL urban sophistication inspired by urban nights and city lights, in a tough G-SHOCK dressed in refined structural beauty, the black ion-plated GSTB1000BD. Changing from moment to moment as light shifts across its surface, the logo-less bezel takes on a depth and luster only black ion plating can achieve. Stainless steel in minimalist black-toned styling and streamlined form a refined, lustrous impression. Case size (L× W× H) 46.9 × 44.2 × 11.6 mm Weight 118 g Case and bezel material Bio-based Carbon / Stainless steel Band Solid stainless steel band One-touch 3-fold Clasp Construction Shock Resistant Carbon Core Guard structure Water resistance 200-meter water resistance Time adjustment Bluetooth: Connects to a smartphone and automatically adjusts the time Power supply and battery life Tough Solar (Solar powered)