Citizen Eco-Drive Skyhawk Flight Chronograph model JR3060-59F. Keeps excellent time, within +/- 5 seconds of set time over 6 months. Powered by light / solar (never needs a battery) with numerous functions and pilot calculations (see below). Aside from some light rub wear on a few of the band links (see photos), this watch is in excellent condition with no scratches and a crystal clear face. One owner; includes original box, manuals, and extra band links. Watch Functions: Chronograph; 99 Minute Countdown Timer; 24 hour format hand; Analog / Digital Display; Time and calendar in 22 time zones (30 Cities); Three World Time Alarms. Titanium case with E6B slide rule scale on the bezel. Black dial with luminous hands and Arabic numerals. Titanium watch bracelet with center opening deployment clasp and spring release. 100m water resistant.