TUDOR Black Bay Chrono with 41 mm steel case with polished and satin finish. Manufacture Calibre MT5813 (COSC). Self-winding mechanical movement with bidirectional rotor system. Power reserve of approximately 70 hours. 316L steel screw-down pushers at 2 o'clock and 4 o'clock. Waterproof to 200 m (660 ft). Fixed 316L steel bezel with matt black anodised aluminium disc with tachymetric scale and silver markings. Domed black dial with silver counters & date at 6 o'clock. Domed sapphire crystal. Black leather strap with removable bund with folding clasp and safety catch.
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