Patek Philippe & Co., Genève

AN EXCEPTIONALLY FINE AND RARE GOLD OPEN-FACED QUARTER REPEATING KEYLESS LEVER MONTRE À TACT WITH ECCENTRIC SECONDS 1861, NO. 19.850

Movement: 20''' gilded, lever escapement, wolf's tooth winding, bi-metallic compensation balance, two steel hammers striking coiled gongs
Dial: white enamel, Roman numerals, outer Arabic minute ring, eccentric seconds between 5 and 6 o'clock
Case: 18ct gold, the back cover highly engraved with a lion and unicorn supporting a central cartouche with crest depicting an eagle, all beneath a crown and with medals to the base of the scene, the arms under a coronet of a Marquess with suspended military orders, the back mounted with decoratively engraved tact hand, back bezel engraved with touch pins, slide repeat to the band, polished gold cuvette with central aperture to connect tact mechanism to the rear-mounted hand, cuvette signed and numbered Invention & Exécution de Patek Philippe and Co., à Genève, No.19850
diameter 52mm

Provenance:
Captain Peter Belin
Sotheby's London, The Belin Collection, 29 November 1979, lot 187