Hamilton H-31 automatic movement chronograph with 28800 vph and 60-hour power reserve. Features an ivory luminous dial marked with Arabic numerals, minute markers on the outer rim, date display at the 4/5 position. Equipped with a fixed bezel, screw down crown, sapphire crystal lens, and transparent case back. Case is stainless steel measuring 17mm thick and 41mm in diameter; paired with a stainless steel bracelet of 20mm width secured by a fold over clasp. Water resistant to 330 feet / 100 meters. Analog functions include chronograph with two sub-dials (seconds, minutes), hour, minute, second indicators.