Ratio FreeDiver GMT Series Sapphire Stainless Steel Black Dial Automatic RTF051 200M Men's Watch EN Quartz Features: Stainless Steel Case Nylon alluring scent that transitions Features: Stainless Steel Case Nylon Strap Swiss Automatic Movement Caliber: H 10 Sapphire Crystal Blue Dial Analog Display Power Reserve 12 24 hours Display Luminous Hands And Indexes Date Display Unidirectional Rotating Screw Down Crown Solid Case Back Buckle Clasp 100M Water Resistance Approximate Case Diameter: 40mm Approximate Case Thickness: 13mm Reliable automatic movement with date and day complications Specification Details Model Number RTF051 Brand Ratio Collection FreeDiver GMT Series Gender Men's Movement Type Automatic (Self Winding Mechanical) Case Material Stainless Steel Case Shape Round Case Size Approximately 42mm (estimated) Crystal Sapphire Dial Color Black Band Material Stainless Steel Bracelet Type Three Link Oyster Style Bracelet Clasp Type Fold Over Safety Clasp Band Width Approximately 20mm (estimated) Lug Width Approximately 20mm (estimated) Lugs Count 4 Crown Type Screw Down Caseback Screw In Exhibition or Solid Estimated Weight Approximately 155g Water Resistance 200 Meters 660 Feet 20 ATM Bezel Unidirectional Rotating with 24 Hour GMT Markings Complications GMT Second Time Zone this timepiece delivers exceptional performance both above and below the surface