Hamilton X-Wind Chronograph Automatic Mens Watch H77726351. Features a stainless steel case, black rubber strap with screw-down clasp and tang safety release. Includes bidirectional rotating bezel (black outer rim). The silver dial features luminous hands and index hour markers along with minute markers. Additionally displays aviation calculation markers around the outer rim. Analog dial type. Day of week function and date display at 9 o'clock position. Chronograph movement with three sub-dials: seconds, minutes, and hours. Automatic mechanical movement providing a power reserve up to 70 hours. Scratch-resistant sapphire crystal face. Screw-down crown for water resistance. Transparent case back allowing visibility of the automatic movement. Round case shape measuring 45mm in diameter and 16mm thick. Band width is 22mm. Water resistant to 100 meters / 330 feet depth. Functions include: date, day, hour, minute, second indicators. Casual watch style.