The Timepiece Journal » Patek Philippe

Patek Philippe is the most prestigious watch brand in the world — and one of the most counterfeited. This guide covers 10 specific authentication tests to verify any Patek Philippe before buying, from the dial finishing to the movement.

The Patek Philippe Seal (PP Seal), introduced in 2009, is the most comprehensive quality hallmark in watchmaking — covering movement, case, dial, strap, precision, and lifetime service. Here's everything you need to know.

Which watch brands still carry the Geneva Seal? From Patek Philippe to Roger Dubuis, discover the brands committed to this demanding hallmark of Swiss watchmaking.