Important Collectors’ Wristwatches, P...

New York, The Grand Havana Room, Sep 20, 2006

LOT 70

"Portuguese Perpetual Calendar" International Watch Co., Schaffhausen, "Portuguese - Perpetual Calendar", Ref. 5021. Very fine and rare, large, astronomic, self-winding, water-resistant, 18K pink gold gentleman's wristwatch with secular perpetual calendar, moon phases, 7-day power-reserve and an 18K pink gold IWC deployant clasp. Accompanied by a fitted box and certificate.

C. Three-body, solid, polished and brushed, concave lugs, transparent case back with 6 screws, sapphire crystals. D. Black with applied pink gold Arabic numerals, outer dot minute markers, subsidiary dials for the seconds, the day, date, months and the 7-day up-and-down indication, apertures for the moon phases and the 4-digit year. Pink gold "feuille" hands. M. Cal. C 50611, rhodium-plated, "fausses-côtes" decoration, 66 jewels, straight line lever escapement, monometallic balance adjusted to 5 positions, shockabsorber, self-compensating Breguet balance spring, micrometer regulator, skeletonized bi-directional rotor with gold medallion inlay engraved "IWC -Probus Scafusia". Dial, case and movement signed. Diam. 44 mm. Thickness 15 mm.