Lot 307

Patek Philippe & Co. Genève, Case No. 57157, 47 mm, 79 g, circa 1880
A rare Geneva pocket watch with unusual crown wind as invented by Olivier Courvoisier of Neuchâtel
Case: 18k pink gold, monogrammed. Dial: enamel. Movm.: 2/3 plate movement, screw compensation balance.
The Museé d'Horlogerie in Geneva exhibits an ebauche with anchor escapement and the same type of winding system. It was developed by Oliver Courvoisier, who received the English patent no. 1114 in 1873 for it.

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