Stainless steel case with a two-tone (silver and yellow gold-tone) stainless steel bracelet. Fixed yellow gold-tone bezel with a silver-tone top ring showing tachymeter markings. Black dial with luminous yellow gold-tone hands and index hour markers. Minute markers around the outer rim. Dial Type: Analog. Luminescent hands and markers. Date display at the 4 o'clock position. Day of the week display at the 2 o'clock position. Chronograph - three sub-dials displaying: 24 hours, 60 seconds and multi-function. Eco-Drive E650 Atomic Timekeeping Radio Controlled eco-drive movement. Scratch resistant sapphire crystal. Pull / push crown. Solid case back. Case size: 42 mm. Case thickness: 11 mm. Round case shape. Band width: 21 mm. Band length: 8.5 inches. Fold over clasp with a safety release. Water resistant at 200 meters / 660 feet. Functions: chronograph, perpetual calendar, alarm, date, day, GMT, second time zone, hour, minute, second, power reserve indicator, tachymeter. Additional Info: atomic timekeeping, radio controlled, 5 time zone. Sport watch style. Watch label: Japan Movt. Item Variations: AT4004 52E, AT4004.52E, AT400452E. Citizen Perpetual Chrono A-T Black Dial Two-tone Mens Watch AT4004-52E.