George Graham. A rare and historically significant gilt brass movement with early cylinder escapement in later 18ct gold consular case Number 5193, movement circa 1725, later case hallmarked London 1785
Lot 275
George Graham. A rare and historically significant gilt brass movement with early cylinder escapement in later 18ct gold consular case Number 5193, movement circa 1725, later case hallmarked London 1785
Sold for £6,000 (US$ 10,192) inc. premium
Lot Details
George Graham. A rare and historically significant gilt brass movement with early cylinder escapement in later 18ct gold consular case
Number 5193, movement circa 1725, later case hallmarked London 1785
Gilt brass movement with plates separated by four Egyptian pillars, balance cock table finely pierced and engraved with acanthus leaf scrolling and grotesque, solid foot and side plate set engraved with conforming detail, diamond end stone, silvered Arabic regulation, fusee and cylinder escapement, mainspring barrel marked "Gra" possibly by George Graham during finishing, gilt brass dust cap with concealed locking mechanism, later white enamel dial with black Roman numerals probably dates to the same time as the case, rose metal beetle and poker hands (minute hand broken), plain later case with maker's mark II probably that of Joshua Jackson who registered with the office in May 1779, movement and dust cap both signed Geo. Graham, London
47mm.

Footnotes

  • In around 1725/26 Graham switched sharply from using verge to cylinder escapements in his watches. Recorded examples that have come to light so far end with a verge at number 5175, and begin again with a cylinder at number 5182. Before this the second known example of a Graham watch with cylinder escapement was number 5195 making this example, manufactured two in line before, the second earliest example of a Graham cylinder watch known to have survived to date.

    In addition, this watch is complete with original dust cover fitted with the full 'secret' locking mechanism. It is commonly believed that this 'secret' lock was used by Graham on his early cylinders to keep his technological advance hidden from competitors for as long as possible. As, by its nature, it prevented owners from inspecting the quality of the movement many surviving examples have had the mechanism cut out. Previously, the first recorded intact example was number 5227 which was of a modified design, making 5193 the first example with full mechanism and the best indicator we have so far of how the first generation of 'secret' locking would have worked.

    We would like to thank Jeremy Evans for his kind assistance in the research of this watch.
Activities
Auction information

This auction is now finished. If you are interested in consigning in future auctions, please contact the specialist department. If you have queries about lots purchased in this auction, please contact customer services.

Buyers' Obligations

ALL BIDDERS MUST AGREE THAT THEY HAVE READ AND UNDERSTOOD BONHAMS' CONDITIONS OF SALE AND AGREE TO BE BOUND BY THEM, AND AGREE TO PAY THE BUYER'S PREMIUM AND ANY OTHER CHARGES MENTIONED IN THE NOTICE TO BIDDERS. THIS AFFECTS THE BIDDERS LEGAL RIGHTS.

If you have any complaints or questions about the Conditions of Sale, please contact your nearest customer services team.

Buyers' Premium and Charges

For all Sales categories excluding Wine, Coins & Medals and Motor Cars and Motorcycles:

Buyer's Premium Rates
25% on the first £50,000 of the Hammer Price
20% from £50,001 to £1,000,000 the Hammer Price
12% from £1,000,001 of the Hammer Price

VAT at the current rate of 20% will be added to the Buyer's Premium and charges excluding Artists Resale Right.

Payment Notices

Payment in advance: by cash, check with banker's card, credit card, bank draft or traveler's cheque.

Payment at collection: by credit or debit card.

Credit card charges: a surcharge of 2% is applicable when using Mastercard, Visa and overseas debit cards.

Shipping Notices

For information and estimates on domestic and international shipping as well as export licenses please contact Bonhams Shipping Department.

Contacts
  1. Paul Maudsley
    Specialist - Watches
    Bonhams
    Work
    101 New Bond Street
    London, United Kingdom W1S 1SR
    Work +44 20 7447 7412
    FaxFax: +44 20 7468 8370