Datejust 31 Ivory Dial Manufacture Calibres MT5201 (COSC) Self-winding

Manufacture Calibres MT5201 (COSC) Self-winding mechanical movement with bidirectional rotor system

unidirectional rotatable bezel of the Rolex Deepsea enables divers to precisely and safely monitor their dive and decompression times

crafted in yellow gold

Screw-down winding crown with the TUDOR logo in relief

Datejust 31 Ivory Dial Manufacture Calibres MT5201 (COSC) Self-windingFluted bezel The Rolex fluted bezel is a mark of distinction. Originally, the fluting of the Oyster bezel had a functional purpose: it served to screw the bezel onto the case helping to ensure the waterproofness of the watch. It was therefore identical to the fluting on the case back, which was also screwed onto the case for waterproofness, using specific Rolex tools. Over time, the fluting became an aesthetic element, a genuine Rolex signature