39mm case, satin finished, in 18 ct yellow gold Open case back with sapphire crystal Unidirectional rotatable bezel in 18 ct yellow gold with 60-minute graduated disc in matt green anodised aluminium and gold gilded markings and numerals Manufacture Calibre MT5400 (COSC) Self-winding mechanical movement with bidirectional rotor system Dial Green, domed 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 Domed sapphire crystal Waterproof to 200m (660 ft) 3-link 18 ct yellow gold bracelet with satin finish throughout and 18 ct yellow gold “T-fit” clasp