Piaget

Piaget as movement maker

 

What do the Cartier Tank Loius Cartier XL:





and the IWC Portuguese Pure Classic:





have in common, and why I am posting about them here on the Piaget forum?

They both use movements from Piaget! While Cartier's use of ultrathin Piaget calibres is well established, it is more than a little surprising to see one show up in an IWC.

The Cartier is based on the Piaget caliber 430P, and adds a large date window at 12 o'clock and 40-hour power reserve indication at 6 o'clock.

The IWC uses the Calibre 830P, which is hidden behind a nicely engraved case back. The solid case back makes sense, as the Piaget movement has a casing diameter of 26.8 mm and the IWC case is 42.3 mm in diameter. The 2.5 mm thickness of the Piaget movement lets IWC keep the Portuguese thin at 7.3 mm.

Bill