A VICTORIAN TWO-DAY MARINE CHORNOMETER McLachlan, No. 445, circa 1835 The finely engraved silvered dial signed and numbered McLachlan. LONDON No. 445 , Roman hour numerals, subsidiary seconds and up-and-down dials, blued steel hands, pillar-plate numbered 443 , Earnshaw escapment, cut bimetallic balance with segmental heat compensation weights, blued steel helical balance spring, spring foot detent with jewelled locking stone, brass bowl, bezel with convex ( perspex ) glass, gimballed in plain two-tier mahogany box, external brass drop handles 103 mm. dial diam., 173 mm. wide box
A VICTORIAN TWO-DAY MARINE CHORNOMETER McLachlan, No. 445, circa 1835 The finely engraved silvered dial signed and numbered McLachlan. LONDON No. 445 , Roman hour numerals, subsidiary seconds and up-and-down dials, blued steel hands, pillar-plate numbered 443 , Earnshaw escapment, cut bimetallic balance with segmental heat compensation weights, blued steel helical balance spring, spring foot detent with jewelled locking stone, brass bowl, bezel with convex ( perspex ) glass, gimballed in plain two-tier mahogany box, external brass drop handles 103 mm. dial diam., 173 mm. wide box
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.jpg "Quelle: Christie's")
.jpg "Quelle: Christie's")
