Patek Philippe. A fine 18ct gold wristwatch with fitted box Calatrava Ref:3520/D

Case No.2949286, Movement No.1376660, recent. 18-jewel Cal:177 manual wind movement adjusted to heat, cold, isochronism and 5 positions, white dial with black Roman numerals, polished round case with hobnail bezel, screw on back, down turned lugs, fitted Patek Philippe leather strap and 18ct gold buckle, together with Patek Philippe box, case, dial and movement signed  31mm. Sold for £4,000 plus Premium and tax 

Bonhams. Fine Watches and Wristwatches, 13 Dec 2007. New Bond Street