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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. Offering a sporty yet sophisticated look, this Tudor Black Bay Watch showcases a bold blue dial and unidirectional rotatable bezel in steel with 60-minute graduated disc in matt blue anodised aluminium and silver gilded markings and numerals. Presented within a 39mm stainless steel case, the dial is powered by a self-winding mechanical movement with bidirectional rotor system. This watch is also water resistant to 200 metres. Features include Reference number: 79030B Case: 39mm 316L steel case with polished and satin finish Thickness: 11.9mm Bezel: Unidirectional rotatable bezel in steel with 60-minute graduated disc Crown: Steel screw-down winding crown Dial: Blue, domed Crystal: Domed sapphire crystal Water Resistance: 200 metres (660 ft) Bracelet: Riveted steel bracelet with polished and satin finish Calibre: Manufacture Calibre MT5402 (COSC) Functions: Hours, minutes, seconds (Stop-seconds for precise time setting) Power Reserve: Approx. 70 hours Winding: Automatic Jewels: 27 Frequency: 28,800 beats/hour (4Hz) Discover the full Tudor collection. Verified details include bracelet material of Stainless Steel, brand collections of Black Bay, dial colour of Blue, diameter of 39mm, guarantee of Tudor 5 Year Guarantee and movement of Automatic. Available colours: Blue.