Men's Tudor automatic chronometer watch. Silver-tone stainless steel case with fixed yellow gold bezel and matching bracelet clasp. Silver dial features diamond-index hour markers at major positions (3, 6, 9, 12) and minute markers around the outer rim. Gold-tone hands and luminous coating for visibility in low light. Powered by Tudor Calibre MT5602 movement with automatic winding, 28800 vph frequency, and a power reserve of approximately 70 hours (using energy stored from previous operation). Equipped with sapphire crystal for scratch resistance, screw-down crown mechanism, solid case back, analog functions (hour, minute, second), water resistant up to 100 meters / 330 feet depth. Round case measures 39 mm in diameter and includes safety release on fold-over clasp. Belongs to Black Bay Series with Swiss Made label.