Automatic mechanical movement, Longines Calibre 688. Analog quartz chronograph with date function at the 3 o'clock position. Round stainless steel case measuring 41 mm in diameter. Equipped with a fixed stainless steel bezel and brown leather strap featuring tang clasp. Black dial accented by luminous silver-tone hands, Arabic numeral hour markers, minute markers on the outer rim, and scratch-resistant sapphire crystal. Includes three chronograph sub-dials for seconds (60-second), minutes (30-minute) and hours (12-hour). Pull/push crown operation. Solid case back. Water resistant up to 30 meters / 100 feet depth. Swiss Made.