BLACK BAY 58 M7939A1A0RU-0003

39mm steel case

Burgundy dial

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Swiss Made

Swiss Made

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Precision

Certification by the Swiss Official Chronometer Testing Institute (COSC)
Precision at two temperatures, in six different positions and at two different levels of power reserve: 100% and 33%

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Anti-Magnetism

Smooth functioning when exposed to a magnetic field of 15,000 gauss and precision following exposure

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Waterproofness

Waterproof to 200 m (660 ft) in accordance with ISO standard

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Power Reserve

70-hour power reserve

Five year Guarantee
Five-year transferable guarantee with no registration or periodic maintenance checks required
Case
39mm stainless steel case with polished and satin finishes Lugs: 20mm lug width Case thickness: 11.7mm
Movement
Manufacture Calibre MT5400-U Self-winding mechanical movement with bidirectional rotor system
Power Reserve
65-hour power reserve
Winding Crown
Stainless steel screw-down winding crown with the TUDOR rose in relief
Waterproofness
Waterproof to 200m (660 ft)
Bezel
Unidirectional rotatable bezel in stainless steel with burgundy anodised aluminium insert
Dial
Burgundy, domed, with applied hour markers
Crystal
Domed sapphire crystal
Bracelet
Domed sapphire crystal

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