Presage Automatic Watch SSA343J1 GRAY and date (HMSDD)Caliber: 11 1 2'''Movement and date (HMSDD)Caliber: 11 1 2'''Movement Description: Swiss automatic movement with approximately 38 hour power reserveDial Color: BlackHour Markers: IndexesHands: [Standard polished hands]Case Shape: RoundMaterial: 316L stainless steelGlass: Scratch resistant sapphire crystalCase Back: See through case backDimension: 39 The Rolex Datejust 31 combines classic elegance with Swiss precision Gender Men Movement Mechanical Movement Type Automatic with manual winding capacity Calibre 4R57 Duration Approx 5 mm Case Shape Round Dial Colour Blue Water Resistance 5 bar Clasp Three fold clasp with push button release Glass Type Box shaped hardlex Functions Date hand