Z1 Zenith Pilot Type 20. Reference 11.1943.679/63.C800. Watch measures 40mm and is made from steel. Automatic Zenith in-house movement caliber 679 which provides for 50 hours of power reserve. Sapphire crystal on the front and a closed case back. Waterproof 10ATM or 100 meters. Functions are hours, minutes and sweep seconds. This watch is fitted with the original green leather strap with steel pin buckle. Naturally this watch is complete with the original box and papers dated May 2019 with plenty of official Zenith warranty left. Please be aware that this watch was made in a limited edition of 250 pieces only. A great collectable watch in trendy green!