A TWO-DAY ROYAL OBSERVATORY CHRONOMETER ISSUED TO H.M.S. CHALLENGER

PARKINSON & BOUTS, NO. 801

細節

A TWO-DAY ROYAL OBSERVATORY CHRONOMETER ISSUED TO H.M.S. CHALLENGER
Parkinson & Bouts, No. 801
The silvered dial signed and numbered PARKINSON & BOUTS 59 GRACECHURCH ST. LONDON No. 801, Roman hour numerals Breguet blued steel hour and minute hands, subsidiary seconds dial with blued steel hand and up-and-down dial with blued steel hand, Earnshaw escapement, cut bimetallic balance with auxiliary, circular heat compensation weights, palladium helical balance spring, spring foot detent with jewelled locking stone, brass bowl, gimballed in brass-bound three-tier mahogany box, the middle section with bone disc inscribed PARKINSON & BOUTS 801 2 DAYS, external brass drop handles
92 mm. dial diam., 160 mm. square box

拍品專文

The pillar plate on its surface behind the dial has the framemaker's punch mark E & J.M.. The dial originally had the Government Mark within the seconds dial but this has been removed by rear-hammering - this would have been done in accordance with R.G.O. instruction by the purchaser once it was taken off their charge. It is scratchmakred u/c & 800 P&B am 801. There are also indications of engraver's corrections/alterations to the cover behind the address 59 Gracechurch Street.