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Tudor is a Swiss-made watch brand, offering mechanical watches with sophisticated style and proven reliability. The origins of Tudor date back to 1926, when ‘The Tudor’ was first registered as a brand on behalf of Rolex founder, Hans Wilsdorf. Throughout their history, Tudor watches have been chosen by the boldest adventurers and seasoned professionals alike. The Black Bay celebrates 60 years of diving watches with extraordinary heritage. The iconic model inherits the general lines, as well as the domed dial and crystal from the first Tudor diving watches. It borrows the characteristic angular hands, known as snowflake, from the watches delivered in large quantities to the French National Navy in the 1970s. The Black Bay Fifty-Eight Bronze features a new bronze clasp with a redesigned cover and TUDOR "T-fit" rapid adjustment system to adjust the length of the bracelet in 5 positions until 8 mm length. SPECIFICATIONS Bracelet Bronze bracelet with TUDOR «T-fit» clasp with rapid adjustment and an additional «brown-bronze» jacquard fabric strap included Complimentary "brown-bronze" fabric strap with yellow center-line and bronze buckle, included in the box Five year Guarantee Five-year transferable guarantee with no registration or periodic maintenance checks required Case 39 mm satin-brushed bronze case whose colour evolves to match its user’s habits Movement Manufacture Calibre MT5400 (COSC) Self-winding mechanical movement with bidirectional rotor system Power Reserve Power reserve of approximately 70 hours Winding Crown Screw-down, bronze winding crown, engraved with the TUDOR rose Waterproofness Waterproof to 200 m (660 ft) Bezel Unidirectional rotating bezel in bronze with 60-minute graduated matt "brown-bronze" anodised aluminium disc Dial Gradient matt «brown-bronze» domed dial with applied hour markers and Arabic numerals at 3, 6 and 9 o’clock Crystal Domed sapphire crystal. Verified details include bracelet material of Bronze, brand collections of Black Bay, dial colour of Bronze, diameter of 39mm, guarantee of Tudor 5 Year Guarantee and movement of Automatic. Available colours: Bronze.