Stainless steel case with a stainless steel mesh bracelet. Fixed stainless steel bezel. Black dial with silver-tone hands and index hour markers. Minute markers. Pilot’s rotating slide rule. Dial Type: Analog-digital. Luminescent hands and markers. Perpetual calendar. Chronograph – two sub-dials displaying: 24 hour digital utc time display. Citizen caliber Eco-Drive U680 eco-drive movement. Scratch-resistant mineral crystal. Pull / push crown. Solid case back. Round case shape. Case size: 48 mm. Case thickness: 15.5 mm. Band width: 23 mm. Band length: 8 inches. Deployment clasp with a push button release. Water resistant at 200 meters / 660 feet. Functions: atomic, perpetual calendar, alarm, date, day, GMT, second time zone, , world time, chronograph, hour, minute, second, power reserve indicator. Additional Info: with atomic clock synchronization for superior accuracy, this perpetual calendar chronograph receiving radio sigsuitable for recreational scuba diving. Casual watch style. Watch label: Japan Movt. Item Variations: JY8030 83E, JY8030.83E, JY803083E.