This Zenith Grande Port Royal El Primero chronograph (ref 18.0550.400/01.C503)is in a very large 50.7mm (including the lugs) x 36mm x 14mm rectangular 18K rose gold case with display back secured by four fine gold screws, water resistant to 50 meters. The silver guilloche dial has fancy art deco rose gold Arabic numerals and quickset date at four. The watch has a sapphire crystal and a signed non-screw down crown. It is on a hand made signed black crocodile strap with 18K gold deployant clasp, in like new condition. This watch is in near mint condition, without a detectable scratch or ding on the case or crystal. The Zenith cal 400 31 jewel El Primero automatic movement is accurate to a tolerance of one second per day, and the chronograph functions and zeros precisely. This preowned high grade Swiss chronograph will be sold with boxes and all papers. It has a list price of $18,100. ZEN094 $8,550.00 Click to See Larger Image Click to See Larger Image Please feel free to contact us by phone or email if you have questions or wish to order any watch. Click on Policies and FAQ for details about watch purchases and our three day return policy. Ed and David Loebl THE WATCHSELLER, LLC 6890 East Sunrise Drive Suite 120-384 Tucson, AZ 85750-0739 520-615-8800 FAX: 520-615-8801 deloebl@comcast.net THE WATCHSELLER, LLC is an authorized dealer for Atlantic, Epos, RGM, Thomas Gref, and Vollmer watches. We are not an authorized dealer for any of the other brands of watches that we offer for sale. All watches sold by The Watchseller are genuine and authentic.