Tudor Black Bay 68 Hand Wind Chronometer Mens Watch model number M7943A1A0NU-0002. Features a silver-tone stainless steel case and bracelet, equipped with a unidirectional rotating black stainless steel bezel. The sun-brushed silver dial displays black hour and minute hands along with index hour markers, also featuring minute markers on the outer rim. Analog dial type includes luminescent coating for the hands and markers. Powered by Tudor Calibre MT5601-U hand wind movement offering a 70-hour power reserve. Secured with a scratch-resistant sapphire crystal. Features a screw-down crown. Possesses a round case shape measuring 43 mm in diameter, 13.6 mm thick. Accompanied by a silver-tone stainless steel bracelet band of 22 mm width. Water resistant to depths of 200 meters / 660 feet. Functions include chronometer accuracy, hour, minute, and second indications. Belongs to the Black Bay 68 Series and carries a Swiss Made label.