Case material: Yellow gold; Charge: Manual; Conditions: Used Presentation condition : With dealer guarantee ; Price on request Gmtbroker Reference: 3915J An 18k Yellow Gold Double Name Tiffany & Co.  Calatrava Gents Wristwatch, silver dial with applied arabic numbers,  a fixed 18k yellow gold bezel with 18k yellow gold fancy extended lugs, a brand new brown leather strap (not by Patek Philippe) with an original 18k yellow gold deployant clasp, sapphire glass, manual wind movement, in excellent condition, comes with a Patek Philippe box, our own certificate of authenticity and our own one year warranty.