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    Description

    Patek Philippe Ref. 5250G Limited Edition White Gold Annual Calendar With Moon Phases, Advanced Research Silicon Escape Wheel, circa 2005
    Case: No. 4339161, 18k white gold, two body, screw down transparent back with integrated loupe and engraved inscription "Patek Philippe Advanced Research", concave lugs, correctors on the rim, 39 mm
    Dial: brushed silver, subsidiary dials for the days and months, date and moon phase apertures, power indicator below twelve, luminous feuille hands, center sweep seconds, applied blue- black indexes and numerals, black minute track with luminous dots
    Movement: No. 3636009, automatic, 36 jewels, adjusted heat, cold, isochronism and five positions, 21k gold rotor mounted on zirconium ball bearings, rhodium finish, Geneva seal hallmark, magnifying loupe over the silicon escape wheel, caliber 315 S IRM QA LU
    Band: black cousu main, 18k white gold deployant buckle
    Signed: all elements signed Patek Philippe, with inner and outer boxes, certificate of origin, and informational/instruction booklet

    Note: The revolutionary reference 5250 introduced silicon as a material which will shape the future of horology. It is anti-magnetic, nearly twice as hard as steel, three times lighter than steel and highly corrosion resistant. Substantially smoother than a traditional steel escape wheel, the locking faces of the silicon version never need to be oiled. The movement of the 5250 features an integrated loupe on the back and an additional milled opening on the train bridge for viewing the motion of the unique escape wheel with the characteristic blue-purple shimmer. The production of the 5250 was limited to a mere 100 pieces.


    Condition Report*: Type: Patek Philippe Ref. 5250G Limited Edition White Gold Annual Calendar With Moon Phases, Advanced Research Silicon Escape Wheel
    Model: 5250G-001
    Dial: brushed silver
    Hands; luminous feuille
    Metal: 18k white gold
    Case No: 4339161
    Case Info: transparent screw back with loupe
    Case Width: 39 mm
    Crystal: double sapphire
    Watch Movement: No. 3636009, caliber 315/266, 21k gold rotor, 36 jewels, adjusted heat, cold, isochronism and five positions
    Band: black cousu main, 18k white gold deployant clasp
    Circa: 2005
    Condition: all in exceptionally fine condition
    *Heritage Auctions strongly encourages in-person inspection of items by the bidder. Statements by Heritage regarding the condition of objects are for guidance only and should not be relied upon as statements of fact, and do not constitute a representation, warranty, or assumption of liability by Heritage. All lots offered are sold "AS IS".

    Auction Info

    Auction Dates
    December, 2010
    4th Saturday
    Bids + Registered Phone Bidders: 1
    Lot Tracking Activity: N/A
    Page Views: 8,031

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