Piaget Polo Skeleton watch, 42 mm. Case in 18K white gold set with 268 brilliant-cut diamonds (approx. 2.43 cts). Crown set with a brilliant-cut diamond (approx. 0.05 ct). Bracelet in 18K white gold set with 1478 brilliant-cut diamonds (approx. 10.04 cts). Sapphire crystal case back. 1200S1 Manufacture ultra-thin skeleton automatic mechanical movement (2.4 mm).