Urban Jürgensen - The New York Watch Auction: X New York Saturday, June 8, 2024 | Phillips
  • Manufacturer: Urban Jürgensen
    Year: Circa 2011
    Reference No: 11C
    Movement No: No. 16
    Model Name: Detent Escapement “Prototype”
    Material: Platinum
    Calibre: Manual, cal. 8P detent escapement, 25 jewels
    Bracelet/Strap: Leather
    Clasp/Buckle: Stainless steel Urban Jürgensen deployant clasp
    Dimensions: 41mm Diameter
    Signed: Case, dial, movement, and clasp signed.
    Accessories: Accompanied by undated Urban Jurgensen certificate of guarantee, chronometer certificate dated March 11th, 2011, folio with product information, fitted wooden presentation box, slip cloth, and outer box.

  • Catalogue Essay

    In the highly accurate detent escapement, the balance wheel swings undisturbed during most of its cycle, except the brief impulse period, which is only given once per cycle. It runs virtually without friction and the escape wheel teeth do not require oiling.

    The greatest downfall of the detent escapement was the fact that it was very sensitive to shocks and as such this escapement was found rarely in pocket watches and none in wristwatch format - until a genius dream team at Urban Jurgensen composed of Derek Pratt, Kari Voutilainen, and Jean-François Mojon set out to create the world’s first wristwatch movement with detent escapement. Pratt provided the initial tests, Mojon constructed the movement, and Voutilainen finished, regulated, and assembled the first series prototypes, of which this is one.

    The resulting groundbreaking movement, the P8, was introduced at the Basel Fair in 2011, featured two barrels in series providing an impressive power reserve of up to 88 hours. The profile of the escape wheel teeth has also been optimized in order to reduce friction even more.

    To introduce this unprecedented movement, Urban Jurgensen auctioned the present prototype example in 2011, which was purchased by the current consignor. Importantly, this watch is also the very first wristwatch ever manufactured in-house by Urban Jürgensen. Of the 40 prototype movements, 25 were cased in different metals, each with a different dial. Thus, the present combination of platinum case and black dial is unique, and comes accompanied by all its original accessories.


Ref. 11C
A unique, important, and cutting-edge platinum prototype wristwatch with detent escapement, power reserve, black dial, guarantee, chronometer certificate, and presentation box

Circa 2011
41mm Diameter
Case, dial, movement, and clasp signed.

$20,000 - 40,000 

Sold for $152,400

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Paul Boutros
Deputy Chairman, Watches, Head of Watches, Americas
+1 (212) 940-1293

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Head of Sale, New York
+1 (212) 940 1285

The New York Watch Auction: X

New York Auction 8 - 9 June 2024