The lab’s proprietary diamond cut grade has been expanded to include the popular fancy shape.
From Basel: 5 New Watches from Tudor
An editor favorite was the Black Bay Fifty-Eight, created as a tribute to the brand’s first 200-meter dive watch.

Basel--Tudor rolled out a vintage-style dive watch at Baselworld as well as a new GMT with a bi-color bezel, just as sister company Rolex did.
An editor favorite at the show, the Black Bay Fifty-Eight is small (39 mm) and thin (the movement is 4.99 mm thick) for a dive watch and has a vintage look—with good reason.
Tudor created the Fifty-Eight as a homage to the first dive watch it created that was waterproof to 200 meters, the Ref. 7924, which came out in 1958.
Its size as well as its large crown (the Ref. 7924 was nicknamed the “Big Crown”) and the red triangle on the bezel are both components of the original design, though the updated version is powered by a new movement.
The MT5402 is part of the second generation of in-house movements for Tudor. It is COSC-certified and has a 70-hour power reserve.
The Black Bay Fifty-Eight is available on a bracelet ($3,575) or leather or nato strap ($3,250).
Click through the slideshow below to see four more Tudor watches introduced at Baselworld.
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