Tudor Black Bay Chrono S&G

The Tudor Black Bay Chrono S&G, reference M79363N-0007, is a chronograph with a 41 mm steel case. The case measures 14.4 mm thick, with a 22 mm lug width. A domed sapphire crystal sits over the champagne dial, and the fixed bezel carries a tachymetric scale for reading speed over distance. Inside is the self-winding Manufacture Calibre MT5813, a COSC-certified chronometer movement with a flyback function and 70 hours of power reserve. Hands and indices are luminous, and small seconds appear as a subdial. A steel and gold bracelet closes on a folding clasp. Fitted with a screw-down crown, the case remains water resistant to 200 metres.