Casio G Shock G Squad Digital Smartphone Link Bio Based Resin Quartz GBD 300 1 200M Men's Watch Arbutus Womens D Calibre quartz movement GMA S120MF 4A D Calibre quartz movement Features: Stainless Steel Case Dark Blue Leather Strap Automatic Movement Caliber: 7S26 23 Jewels Hardlex Crystal Black Dial Analog Display Luminous Hands And Markers Day And Date Display Screw Down Crown See Through Case Back Buckle Clasp 100M Water Resistance Approximate Case Diameter: 41mm Approximate Case Thickness: 13mm Brand Casio Collection G Shock G Squad Model Number GBD 300 1 GBD300 1 Gender Men's Movement Quartz Digital Display Type Digital LCD Case Shape Round Case Material Bio Based Resin Case Diameter Approximately 45mm Case Thickness Approximately 15mm Estimated Weight 52g Band Material Bio Based Resin Band Type Two Piece Strap Band Width Approximately 22mm Lug Width Approximately 22mm Lugs Count 4 Crown Type Push Button Caseback Type Screw in Water Resistance 200 Meters (20 ATM) Crystal Mineral Glass Connectivity Bluetooth Smartphone Link Special Features Shock Resistant Advanced fitness tracking features including step counter and activity monitoring