The Patek Philippe 5520P-001 Grand Complications has a self winding mechanical movement and a AL 30‑660 S C FUS Caliber. This Grand Complications has an ebony black sunburst dial and gold applied numerals with luminescent coating. This particular model also combines Patek Philippe’s exclusive dual time zone "Travel Time" system with a 24-hour alarm mechanism, complete with a hammer that strikes on a classic gong. With a platinum case, interchangeable full back and sapphire-crystal case back, the Patek Philippe 5520P-001 has a timeless luxury appeal. Water resistant up to a depth of 30 metres and featuring a black calfskin strap and clevis prong buckle, we are eager to buy your Patek Philippe Grand Complications watch. Sell your Patek Philippe 5520P-001 to us and receive the best possible price.