41 mm matt black ceramic case with micro-blasted finish and monobloc middle case Open case back in black-PVD-treated 316L steel with sapphire crystal, Screw-down winding crown in black-PVD-treated 316L steel, with the TUDOR rose and circular satin-brushed steel winding crown tube., Domed sapphire crystal, Waterproof to 200 m (660 ft), Hybrid leather and rubber strap with 316L steel folding clasp and safety catch in black PVD-treated 316L steel, ceramic black and pvd black