A HAMILTON MODEL 21 TWO-DAY MARINE CHRONOMETER Hamilton Lancaster P.A., U.S.A. movement and bowl, the matt-silver dial signed and numbered Hamilton Lancaster P.A., U.S.A. N7966 1941 Arabic hour numerals, subsidiary seconds and up-and-down (state-of-mind) dials, black 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 7966 , 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, in aluminium rubber lined transportation container. 107mm dial diam., 153mm. container diam.
A HAMILTON MODEL 21 TWO-DAY MARINE CHRONOMETER Hamilton Lancaster P.A., U.S.A. movement and bowl, the matt-silver dial signed and numbered Hamilton Lancaster P.A., U.S.A. N7966 1941 Arabic hour numerals, subsidiary seconds and up-and-down (state-of-mind) dials, black 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 7966 , 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, in aluminium rubber lined transportation container. 107mm dial diam., 153mm. container diam.
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