Important Collectors’ Wristwatches an...

Hôtel Plaza Athénée - Le Trianon, Sep 28, 2005

LOT 93

"Portuguese Perpetual Calendar" International Watch Co., Schaffhausen, "Portuguese Perpetual Calendar", No. 2918954, Ref. 5021. Production of this reference started in 2003. Very fine and rare, large, self-winding, water-resistant, 18K yellow gold gentleman's wristwatch with secular perpetual calendar, moon phases, 7-day power-reserve and a yellow gold IWC deployant clasp. Accompanied by a wooden fitted box and a certificate.

C. Three-body, solid, polished and brushed, concave lugs, transparent case back with 6 screws, sapphire crystals. D. Satiné silver with applied yellow gold Arabic numerals, subsidiary "guilloché" dials for the seconds, the day, date, months and the 7 day up-anddown indication, apertures for the moon phases and the years. Yellow gold "feuille" hands. M. Cal. C 50611, rhodium-plated. "fausses côtes" decoration, 64 jewels, straight line lever escapement, monometallic balance adjusted to 5 positions, shock-absorber, self-compensating Breguet balance spring, micrometer regulator, skeletonized bidirectional rotor with gold medallion inlay engraved "IWC ?Probus Scafusia - Seven Days Power-Reserve". Dial, case and movement signed. Diam. 44 mm. Thickness 15 mm.