Patek Philippe Hobnail Calatrava in 18k gold with center sweep seconds on with mesh band. Auto. Case size 34mm. 7.25" length. Comes with Archive papers. Ref 3563-3. Circa 1972. Fine Pre-owned Patek Philippe Watch. Certified preowned Classic Patek Philippe Calatrava 3563-3 watch is made out of yellow gold on a Gold Mesh band with a 18k Two Piece buckle. This Patek Philippe watch has a 34 x 34 mm case with a Round caseback and Gold Plain dial. It is Gray and Sons Certified Authentic and comes backed by our 12-month warranty. Each watch is inspected by our certified in-house Swiss-trained watchmakers before shipment including final servicing, cleaning, and polishing.