Inspired by TUDOR's original diving watches, this Black Bay GMT watch boasts the same smooth lines, domed dial, and angular hands as the iconic model. The 41mm stainless steel case houses a reliable self-winding mechanical movement that introduces the date function to the Black Bay family. Additionally, the GMT model features a multi time zone function and is recognized by the deep blue and burgundy rotating bezel. Completing the look is a riveted stainless steel bracelet that secures comfortably with a folding clasp, safety catch closure.<br /><br /><strong>Case: </strong>41mm stainless steel case with polished and satin finish<br /><br /><strong>Movement: </strong>Manufacture Calibre MT5652 (COSC) - Self-winding mechanical movement with bidirectional rotor system<br /><br /><strong>Power Reserve: </strong>Power reserve of approximately 70 hours<br /><br /><strong>Winding Crown: </strong>Stainless steel screw-down winding crown, with the TUDOR rose in relief, with circular satin-brushed steel winding crown tube<br /><br /><strong>Waterproofness: </strong>Waterproof to 200 m (660 ft)<br /><br /><strong>Bezel: </strong>Bidirectional rotatable 48 notches bezel in steel with 24-hour graduated anodized aluminum disc in matte burgundy and blue<br /><br /><strong>Dial: </strong>Black, domed<br /><br /><strong>Crystal: </strong>Domed, Sapphire Crystal<br /><br /><strong>Bracelet: </strong>Riveted stainless steel bracelet with polished and satin finish with folding clasp and safety catch<br /><br /><strong>TUDOR's Guarantee: </strong>Five-year transferable guarantee with no registration or periodic maintenance checks required<br /><br />TUDOR Style #: M79830RB-0001