Casio Pro Trek Analog Digital Smartphone Link Resin Green Dial Tough Solar PRJ B001 1 100M Men's Watch COA:SIN Brand: Ratio Description: Ratio FreeDiver classic design Brand: Ratio Description: Ratio FreeDiver Professional Sapphire Black Dial Quartz RTF021 200M Men's Watch is offered as a stainless steel quartz watch by Ratio 5 in Material: Accent Color 2 Watch Band Material: Leather Clasp Connector: Buckle Item Weight U M: lbs Width of Item: 18 mm Watch Band Width: 18 mm Accessory Type: Watch Accessory Product Type: Watch Sold By Unit: Each Gender: Unisex Watch Type: Watch Bands Watch Band Color: Navy Watch Buckle Color: Gold Return Policy: If not 100% satisfied return watch in 30 days for a full refund or exchange Smartphone Link Connectivity: Bluetooth pairing with your smartphone for automatic time adjustment and enhanced features Specification Detail Model Number PRJ B001 1 PRJB001 1 Brand Casio Pro Trek Gender Men's Display Type Analog Digital Combination Dial Color Green Case Material Resin Case Color Black Case Shape Round Estimated Case Size 48 50mm (approximate) Estimated Weight 65 75g (approximate) Band Material Resin Silicone Band Color Black Bracelet Type Two Piece Strap Movement Type Quartz (Solar Powered) Power Source Tough Solar Special Functions Smartphone Link (Bluetooth Connectivity) Water Resistance 100 Meters (10 ATM) Crystal Mineral Glass Crown Type Push Pull