One of the most unusual Patek Philippe variants of the modern era was meant to be its rarest yet. In 1997, the maison consolidated a dozen of its watchmaking facilities from across Geneva to under one roof in Plan-les-Ouates, a suburb on the outskirts of the city. It was no simple feat, and required months of coordination and disruptions in watch production; more importantly, it reflected a new era of growth. Philippe Stern not only guided Patek Philippe through this undertaking, but once it was completed, he commissioned a limited run of watches to celebrate.