A mahogany cased two-day marine chronometer Thomas Mercer, St Albans, mid 20th century The four-pillar full-plate movement with Harrison's maintaining power, Earshaw type spring detent escapement, split bi-metallic balance with cylindrical compensation weights and helical balance spring, with spotted backplate and numbered 27455 to reverse of dial flange, the 4 inch silvered circular Arabic numeral dial with subsidiary seconds and power reserve dials signed Thomas Mercer to centre and repeat numbered to centre of seconds dial, set into a gilt finish bowl with screw-down bezel mounted within gimbals and two-part mahogany case with glazed lid and brass plaque inscribed HENRY BROWNE LTD BARKING, 17.5cm high, with original mahogany outer guard case.
A mahogany cased two-day marine chronometer Thomas Mercer, St Albans, mid 20th century The four-pillar full-plate movement with Harrison's maintaining power, Earshaw type spring detent escapement, split bi-metallic balance with cylindrical compensation weights and helical balance spring, with spotted backplate and numbered 27455 to reverse of dial flange, the 4 inch silvered circular Arabic numeral dial with subsidiary seconds and power reserve dials signed Thomas Mercer to centre and repeat numbered to centre of seconds dial, set into a gilt finish bowl with screw-down bezel mounted within gimbals and two-part mahogany case with glazed lid and brass plaque inscribed HENRY BROWNE LTD BARKING, 17.5cm high, with original mahogany outer guard case.
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