A HAMILTON MODEL 21 TWO-DAY MARINE CHRONOMETER Hamilton Lancaster P.A., U.S.A. the silvered dial signed and numbered Hamilton Lancaster P.A., U.S.A. N8854 1941 , Arabic hour numerals, subsidiary seconds and up-and-down (state-of-wind) dials, block hands, nickel plated frames with parallel line spotting, top-plate inscribed Model 21, 14 jewels Hamilton Watch Co. Lancaster. Penn , the pillar-plate numbered 2E 8854, Earnshaw escapement, Hamilton spring detent assembly with jewelled locking stone, uncut stainless steel balance with invar cross-arm, Elinvar-Extra helical balance spring, Hamilton 'U' form balance brake above balance rim, brass bowl, later gimbal, later brass-bound three-tier mahogany box with external drop brass handles 107mm. dial. diam.
A HAMILTON MODEL 21 TWO-DAY MARINE CHRONOMETER Hamilton Lancaster P.A., U.S.A. the silvered dial signed and numbered Hamilton Lancaster P.A., U.S.A. N8854 1941 , Arabic hour numerals, subsidiary seconds and up-and-down (state-of-wind) dials, block hands, nickel plated frames with parallel line spotting, top-plate inscribed Model 21, 14 jewels Hamilton Watch Co. Lancaster. Penn , the pillar-plate numbered 2E 8854, Earnshaw escapement, Hamilton spring detent assembly with jewelled locking stone, uncut stainless steel balance with invar cross-arm, Elinvar-Extra helical balance spring, Hamilton 'U' form balance brake above balance rim, brass bowl, later gimbal, later brass-bound three-tier mahogany box with external drop brass handles 107mm. dial. diam.
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