Patek Philippe & Co. Genève, Movement No. 193425, Case No. 416111, Cal. 19''', 52 mm, 118 g, circa 1925

An extremely rare Geneva lever chronometer - quality extra - with 36h power reserve indicator. With Patek Philippe extract from the archives and extract from Geneva Observatory rating certificate
Case: 18k gold, engine-turned. Dial: enamel. Movm.: bridge movement "Extra", Guillaume gold screw compensation balance.

The watch is particularly interesting in that where the banking pins are usually two steel pins embedded in the plate, the task is carried here out by two cut ruby sections that are set in the pallet cock.

In 1929 this watch took part in the chronometer test at the Geneva observatory category B and achieved 623 points, which made it 25th of 29 chronometers in this category. It was regulated by F. Modoux. The movement of this watch was encased in 1929 and sold on January 16, 1930.