拍品 20
20
A George III white marble, brass and ormolu-mounted seven day mantel chronometer
No VAT will be charged on the hammer price, but VA… 顯示更多
A George III white marble, brass and ormolu-mounted seven day mantel chronometer

JOHN R. ARNOLD, LONDON, NO.303. CIRCA 1810

細節
A George III white marble, brass and ormolu-mounted seven day mantel chronometer
John R. Arnold, London, No.303. Circa 1810
CASE: well moulded drum-shaped case with fluted bezel and with conforming edge to the socle, on stepped rectangular plinth, with bayonet-fixed ormolu bezel and sliding into the case on faceted runners secured to the cylindrical brass drum, with rear winding cover secured with a spring catch
DIAL: Roman dial with dot minute track, seven day up/down sector and subsidiary seconds ring, signed Arnold London and numbered 303, gold hour, minute and up/down hands, blued steel seconds hand--90 mm. diameter
MOVEMENT: two tier later spotted plates signed John R. Arnold London Inv. et fecit/No.303, single chain fusee with maintaining power
ESCAPEMENT: Arnold spring detent with adjustable heat compensatation weights at the screw-threaded outer ends (Z balance), blued steel helical spring and diamond endstone
13¼ in. (33.5 cm.) high
注意事項
No VAT will be charged on the hammer price, but VAT at 15% will be added to the buyer's premium which is invoiced on a VAT inclusive basis.

拍品專文

COMPARATIVE LITERATURE:
Hans Staeger, 100 Years of Precision Timekeepers from John Arnold to Arnold & Frodsham 1763-1862, Stuttgart, 1997, p.356, fig.4.
The present chronometer is comparable to an example that was in the Arnold family for many years and is now in the collection of the Worshipful Company of Clockmakers.