Brand new Zenith El Primero Chronomaster Tourbillon Moonphase chronograph gents watch, Model # 18.1-02.C505 . Limited Edition of 25pc. 18kt rose gold 45mm case. 18k rose gold bezel. Silver Guilloche colored dial with open display and Roman numeral hour markers. 18k pink gold hour, minute, and second hands. 18k rose gold crown and pushers. 18k rose gold lugs. Chronograph functions: 12 Hour Register, 30 Minute Register, Central Second Register. Automatic movement, Caliber El Primero 4034 (36.000 v/pH). Crocodile leather strap with 18k rose gold buckle. Hours, minutes, seconds, moon-phase, date and tourbillon. Case back transparent. Power reserve up to 50 hours. Water resistant up to 30 meters / 100 feet. Tourbillon - compensates for differences in rate caused by a watch adopting different positions. The principle is to mount the balance and escapement in a rotating cage. The balance and escapement rotate around their common axis going through all positions to average out the errors. Tourbillon cages or platforms usually rotate once per minute but 4 minute and six minute tourbillons are also found. The Tourbillon complication is an extremely difficult accomplishment to achieve and generally demands a high premium.

　　subject to availability