Patek Philippe, Fine White Gold Automatic Calendar Wristwatch with Moon Phases and Power Reserve Indication

$50,000 - $70,000

Monterey


Please note that this lot is subject to Sotheby's buyer premium which is 25% of the hammer price up to and including $250,000, 20% of any amount in excess of $250,000 up to and including $3,000,000, and 12.5% of any amount in excess of $3,000,000.
Ref. 5250G, mvt. 3636005, case 4339194, made in 2005. Diameter: 39 mm

Cal. 315 S IRM QA LU (SI) automatic movement, stamped with the seal of Geneva, 36 jewels, silicon escape wheel, silvered dial, applied black Arabic numerals and baton indexes with luminescent dots, luminescent Feuille hands, center seconds, subsidiary dials for day and month, fan form aperture for moon phases, aperture for date at 6, power reserve indicator at 12, outer minute track, 18k white gold case, sapphire crystal display back with integrated magnifying lens inscribed Patek Philippe Advanced Research, case, dial, and movement signed, with an 18k white gold Patek Philippe folding clasp.

Accompanied by an Extract from the Archives confirming the date of sale on 20 December 2005.

Patek Philippe’s Advanced Research division is devoted to technical innovations for the future of horology. The development of Silinvar, an ultra-modern silicon technology, improves upon Patek Philippe’s mastery in precision and efficiency. Previously, hairsprings and other vital parts made from carbon steel were susceptible to oxidation, rust, magnetism, and temperature variations. The development of Silinvar eliminates these variables with the added benefit of reduced mass. Silinvar is in fact three times lighter than conventional carbon steel springs, transmits energy more efficiently, and can be shaped more accurately, making it an ideal material for watchmaking

The Ref. 5250 was launched in 2005 in a limited series of only 100 examples in white gold.


Addendum

Please note that the strap may be removed for international shipping.


Lot Number
205

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