Matte black ceramic case, 41 mm, micro-polished finish Open case back with sapphire crystal, 316L steel with black PVD treatment, Manufacture calibre MT5602-1U, Self-winding mechanical movement with bidirectional rotor, 70-hour power reserve, Screw-down crown in 316L steel with black PVD treatment, with the TUDOR rose in relief and circular satin-finished steel crown tube Water resistant to 200m Unidirectional rotating bezel in black PVD-treated 316L steel with a sunray satin-finished black ceramic disc, with 60-minute graduation, engraved marks and numbers Black, domed crown Domed sapphire crystal Hybrid leather and rubber strap with 316L steel folding clasp and black PVD treated 316L steel safety clasp PRECISION Certification by the Swiss Official Chronometer Testing Institute (COSC) Precision at two temperatures, in six positions and with two different levels of power reserve: 100% and 33% RESISTANCE TO MAGNETIC FIELDS Correct operation under a magnetic field of 15,000 gauss and no variation in precision after this exposure.