WHYTE, THOMSON & CO. No. 4492: A two-day marine chronometer, the silvered dial signed Whyte, Thomson & Co. Makers to the Admiralty, 144 Broomielaw, Glasgow, No.4492, Exhibition "Garter Awards" for 1886 at II and X, Roman hour chapters, gold hour and minute hands, subsidiary seconds and up-and-down dials with blued steel hands, Earnshaw escapement, spring foot detent with jewelled locking pallet, cut bi-metallic balance, circular heat compensation weights, blued steel helical balance spring, brass bowl and gimbal, in three-tier brass-bound rosewood box with Bramah lock, flush recessed carrying handles, white disc to front of middle section inscribed Whyte, Thomson & Co Makers to the Admiralty, Glasgow, and another to the front of the bottom section inscribed 4492

細節

WHYTE, THOMSON & CO. No. 4492: A two-day marine chronometer, the silvered dial signed Whyte, Thomson & Co. Makers to the Admiralty, 144 Broomielaw, Glasgow, No.4492, Exhibition "Garter Awards" for 1886 at II and X, Roman hour chapters, gold hour and minute hands, subsidiary seconds and up-and-down dials with blued steel hands, Earnshaw escapement, spring foot detent with jewelled locking pallet, cut bi-metallic balance, circular heat compensation weights, blued steel helical balance spring, brass bowl and gimbal, in three-tier brass-bound rosewood box with Bramah lock, flush recessed carrying handles, white disc to front of middle section inscribed Whyte, Thomson & Co Makers to the Admiralty, Glasgow, and another to the front of the bottom section inscribed 4492
102mm.diam.

拍品專文

It is most unusual for a chronometer box to be fitted with a Bramah lock. A feature of this lock is that the key can only be removed when the box is locked; it is essential therefore that the key is always held in safe custody.
Whyte, Thomson & Co were in business at 144 Broomielaw, Glasgow as nautical instrument suppliers and compass adjusters from 1872 to 1924. Accompanying this chronometer are notes compiled in 1978 by Cmdr. D. Harries, F.B.H.I.