A Victorian eight-day marine chronometer

A. JOHANNSEN & CO., NO. 2784, CIRCA 1880

細節

A Victorian eight-day marine chronometer
A. Johannsen & Co., No. 2784, circa 1880
The silvered dial signed and numbered A. Johannsen & Co. MAKERS TO THE ADMIRALTY & TO THE ROYAL NAVIES OF Spain & Portugal. 149 Minories. LONDON 2784, Roman hour numerals, gold hour and minute hands, subsidiary seconds and up-and-down dials with blued steel hands, main frame assembly carrying fusee, barrel and centre wheel, sub-frame assembly with chain guard and carrying remainder of train and Earnshaw escapement, cut bimetallic balance, cylindrical heat compensation wights, blued steel helical balance spring, spring foot detent with jewelled locking stone, brass bowl and gimbal, three-tier brass bound mahogany box, the middle section with inset bone ivory plaque (unsigned), recessed brass handles
118 mm. dial diam., 205 mm. sq. box

拍品專文

A. Johannsen is recorded at 149 Minories 1865-1925.

Inside the middle section of the box is a United States Bureau of Ships's plaque giving instruction on how to wedge the balance. This indicates that this chronometer was part of the stock held by the U.S. Navy during the Second World War.