39 mm case, satin finished, in 18 ct yellow gold Open case back with sapphire crystal Manufacture Calibre MT5400 (COSC) Self-winding mechanical movement with bidirectional rotor system Power reserve of approximately 70 hours 18 ct yellow gold screw-down winding crown, with the TUDOR rose in relief with circular satin-brushed 18 ct yellow gold winding crown tube Waterproof to 200 m (660 ft) Unidirectional rotatable bezel in 18 ct yellow gold with 60-minute graduated disc in matt green anodised aluminium and gold gilded markings and numerals Green, domed Domed sapphire crystal Domed dark brown alligator strap with 18 ct yellow gold buckle Complimentary green fabric strap with gold-coloured band and 18 ct yellow gold buckle, included in the box