TUDOR BLACK BAY 31 S&G M79603-0001

31 mm 316L steel case with polished and satin finish 

Manufacture Calibre MT5201 (COSC)

Self-winding mechanical movement with bidirectional rotor system Integrated construction 

Power reserve of approximately 50 hours 

Yellow gold screw-down winding crown with the TUDOR rose in relief 

Waterproof to 100 m (330 ft) 

Fixed bezel in yellow gold black dial 

Flat sapphire crystal Steel and yellow gold bracelet, polished and satin finish, with steel “T-fit” folding clasp and safety catch