Patek Philippe is the world's most coveted independent manufacture : founded in Geneva in 1839, family-owned by the Sterns since 1932, it deliberately produces between 55,000 and 65,000 watches per year (compared to approximately one million for Rolex) sustaining a scarcity that makes its most sought-after models exceptional patrimonial assets. On the secondary market in 2026, a Nautilus in steel trades between CHF 50,000 and CHF 130,000, and the Patek Philippe Repeat Index (its most-traded auction references) has gained +182% over ten years. With boutique waiting lists of 5 to 10 years for sport references, the pre-owned market is often the only immediate access route : provided you know how to buy safely.