The Tudor Heritage Black Bay 79230DK is the epitome of daring elegance and great functionalities. The Black Bay line is one of the Swiss brand’s collections that gives bold a whole new meaning. With a 41mm case diameter and a self-winding mechanism, this stainless steel watch will look stunning and stylish on your wrist. The power reserve is approximately 70 hours and the movement has a bidirectional rotor system. The winding crown has a PVD coating and a screw-down mechanism. The black dial features luminescent hour markers and hands. The water resistance of this watch is 660ft (200m).