The Patek Philippe Complicated Skeleton 5180/1R-001 Watch features Ultra-thin self-winding mechanical skeleton movement, entirely skeletonized, decorated and engraved by hand. Caliber 240 SQU. Rose gold Case. Sapphire-crystal case back. Water resistant to 30 m. Case diameter: 39 mm. Height: 6.7 mm. Rose gold bracelet. Fold-over clasp.