Casio G Shock Master Of G Air Gravitymaster Smartphone Link Analog Tough Solar GR B300 1A 200M Men's Watch COA:SIN Brand: Regular Price: $734 1 Shoulder Strap 1 Brand: Regular Price: $734 low maintenance Swiss designed timekeeping in a dual tone design with warm dial character suited to smart casual and professional occasions Brand Casio Collection G Shock Master of G Air Gravitymaster Model Number GR B300 1A GRB300 1A Gender Men's Movement Type Tough Solar (Light Powered Quartz) Display Type Analog Digital Combination Case Material Resin Case Shape Round Case Size Approximately 52mm Case Thickness Approximately 16mm Estimated Weight Approximately 72g Band Material Resin Rubber Band Type Two Piece Strap Band Width Approximately 25mm Lug Width Approximately 25mm Lugs Count 4 Crown Type Push Pull Caseback Screw in Water Resistance 200 Meters (20 ATM) Crystal Mineral Glass Connectivity Bluetooth Smartphone Link Special Features Shock Resistant Durable Resin Construction: Lightweight yet incredibly tough case and band materials