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A TWO-DAY MARINE CHRONOMETER
T.S. & J.D. Negus, No. 1765
the silvered dila signed and numbered T.S. & J.D. NEGUS. NEW YORK No. 1765, hour chapter with Roman numerals, outer minute chapter with Arabic five minute intermarkers, gold hour minute and up-and-down dial hands, subsidiary seconds dial with blued steel hand, Earnshaw escapement, cut bimetallic Pennington style balance, blue steel helical balance spring, spring foot detent with jewelled locking stone, brass bowl numbered 1765, gimballed in three-tier brass-bound mahogany box (lacking top lid), flush brass handles
98mm. dial diam., 182mm. sq. box
T.S. & J.D. Negus, No. 1765
the silvered dila signed and numbered T.S. & J.D. NEGUS. NEW YORK No. 1765, hour chapter with Roman numerals, outer minute chapter with Arabic five minute intermarkers, gold hour minute and up-and-down dial hands, subsidiary seconds dial with blued steel hand, Earnshaw escapement, cut bimetallic Pennington style balance, blue steel helical balance spring, spring foot detent with jewelled locking stone, brass bowl numbered 1765, gimballed in three-tier brass-bound mahogany box (lacking top lid), flush brass handles
98mm. dial diam., 182mm. sq. box