A VICTORIAN BRASS-MOUNTED MAHOGANY TWO DAY MARINE CHRONOMETER WITH DENT'S DOUBLE-N BALANCE
Lot 209 MARINE CHRONOMETERS FROM A PRIVATE COLLECTION (LOTS 209-211)

A VICTORIAN BRASS-MOUNTED MAHOGANY TWO DAY MARINE CHRONOMETER WITH DENT'S DOUBLE-N BALANCE

DENT, LONDON, THE MOVEMENT NO. 1710 AND THE CASE NO. 1760. CIRCA 1843

Closed17 March 2011

Price Realised

GBP 3,750

More Information

How to sell

A VICTORIAN BRASS-MOUNTED MAHOGANY TWO DAY MARINE CHRONOMETER WITH DENT'S DOUBLE-N BALANCE
DENT, LONDON, THE MOVEMENT NO. 1710 AND THE CASE No. 1760. CIRCA 1843
CASE: three tier box with drop handles, enamel plaque inscribed 'DENT/1760', bowl with sprung cap cover to winding hole and punched 'DENT/1760' DIAL: 95 mm. diameter silvered dial, subsidiaries for seconds and state of wind, signed 'DENT LONDON/Chronometer Maker, to the/QUEEN No. 1710' MOVEMENT: maintaining power to single chain fusee with detent escapement, gold-plated steel helical balance spring to Dent's double N flat rim balance with four cross-arms and frosted gilt finish; tipsy winding key
6¼ in. (16 cm.); 6¼ in. (16 cm.) square

Anonymous sale, Christie's London, 12 June 1995, lot 407.

Specialist note

Edward Dent (1790-1853) was a horological pioneer. He designed various auxiliary compensation balances, one of which became known as Dent's Staple balance which he patented in 1842 (see lot 210). He continued to adapt and improve this design. A similar balance to this example is illustrated in R.V. Mercer, Edward John Dent and His Successors, London, 1977, p. 182, pl. 40c, described as a flat rim horizontal staple balance. The term 'double N' comes from a patent of 1842.
The same balance is illustrated in the Catalogue of Watches in the British Museum, Pl. 163: cat. no. 244 where it is described as 'Dent double N', patent 9302 of 1842. A Dent chronometer with this balance is rare and it is interesting to note that, unusually, the frame, train wheels and balance are satin gilded suggesting that this instrument may have been made for exhibition purposes.