Patek Philippe Gondolo 10-Day Power Reserve in 18k with a unique case design inspired by the manta ray on a brown croco leather strap with PP tang buckle. Front and back sapphire crystals with crown being protected by the shoulders surrounding it. Manual wind rectangular chronometer fitted with caliber 28-20/220 features a power reserve indicator and subsidiary seconds. With Archive papers. Ref 5100J. Limited Edition. Only 1500 examples made in the year 2000 to celebrate the new millennium. Fine Pre-owned Patek Philippe Watch. Certified preowned Patek Philippe Gondolo 5100J watch is made out of yellow gold on a Brown Leather Strap band with a 18k tang buckle. This Patek Philippe watch has a 34 x 46 mm case with a Rectangle caseback and Cream Stick 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.