This new TUDOR Black Bay Fifty-Eight Navy Blue Automatic Soft Touch Men\'s Watch is the latest striking timepiece to join the iconic Black Bay Fifty-Eight collection. With a recognisable dial inspired by the brand\'s diving watches of the 1950s, this watch boasts a smaller and slimmer case size than previous chunky Black Bay watches. At A Glance  Presented on a soft touch blue strap with folding clasp fastening 39mm steel polished and satin case size 200m waterproof Striking all-blue navy domed dial and unidirectional rotating bezel Index hour markers with iconic snowflake hands Large steel screw-down winding crown Scratch resistant domed sapphire crystal glass Powered by the in-house Manufacture Calibre MT5402 (COSC) Self-winding mechanical movement with bidirectional rotor system Power reserve of 70 hours Officially certified as a chronometer by the Swiss Official Chronometer Testing Institute (COSC)