Tudor Black Bay One 36

Tudor Black Bay One 36, reference M79640-0005, has a 36mm steel case with a polished and satin finish. Case thickness measures 10.5mm, and the lugs take a 19mm strap or bracelet. A flat sapphire crystal covers the blue dial, set with diamonds and finished with luminous hands and indices. The self-winding MT5400 calibre is chronometer certified and gives around 70 hours of power reserve, driving a central seconds display. A screw-down crown, engraved with the Tudor rose, secures the case. The watch comes on a steel bracelet closed by a T-fit folding clasp. That clasp secures a case built to withstand depths of 100 metres.