TUDOR BLACK BAY 31 S&G M79603-0002

31 mm 316L steel case with polished satin finish 

Manufacture Calibre  MT5201 (COSC) 

Self-winding mechanical movement with bidirectional rotor system 

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 dial silver Flat sapphire crystal Steel and yellow gold bracelet

Polished and satin finish, with steel “T-fit” folding clasp and safety catch