細節
An Edwardian walnut two-day marine chronometer
Frodsham & Keen, No. 3893/8654. Circa 1912
The silvered dial signed Frodsham & Keen, 31 50 Castle St., LIVERPOOL 3893/8654 AUXILIARY COMPENSATION, Roman hour numerals, gold hour and minute hands, subsidiary seconds and up-and-down dials with blued steel hands, Earnshaw escapement, cut bimetallic balance with Kullberg auxiliary, cylindrical heat compensation weights, palladium helical balance spring, spring foot detent with jewelled locking stone, brass bowl and gimbal, three-tier brass-bound walnut veneered box, the middle section with mother-of-pearl plaque inscribed FRODSHAM & KEEN 3893/8654 LIVERPOOL, flush recessed brass handles, with outer mahogany guard box
98 mm. dial diam., 180 mm. sq. box