Black Bay 31 S&G

Case
Case: 31mm 316L steel case with polished and satin finish
Waterproofness: Waterproof to 100m (330 ft)
Bezel: Fixed bezel in solid yellow gold, set with diamonds
Dial: Champagne-colour with diamond hour markers, flat
Crystal: Flat sapphire crystal

Movement
Movement: Manufacture Calibre MT5201 (COSC)Self-winding mechanical movement with bidirectional rotor systemIntegrated construction
Power Reserve: Power reserve of approximately 50 hours
Winding Crown: Screw-down winding crown with the TUDOR rose in relief. Steel covered by a 0.1mm yellow gold cap

Bracelet
Bracelet: First center links in steel or solid yellow gold. Remaining center links in steel or steel covered by a 0.2mm yellow gold cap. "T-fit" folding clasp with safety catch. The logo on the catch is made of solid yellow gold

Reference
M79613-0007