There simply is no beating Piaget when it comes to ultra-thin, ultra high-end timepieces. This year the company celebrates 60 years of its Altiplano watch with two editions in 43 and 38mm. The white gold 43mm design is limited to 360 pieces and features double sapphire crystals and an in-house caliber 1200P with a power reserve of 44 hours. The 38mm model is limited to 460 pieces and comes in an 18kt white gold case and their in-house caliber 430P with a 43 hour power reserve.
Piaget's Altiplano Ultimate 910P takes the crown as the world's thinnest automatic watch
The watch is just 4.30mm thin.
Piaget shows off its expertise in crafting complex, ultra-thin movements with the Polo Skeleton
The 42mm case is just 6.5mm thick.