Original A Johannsen 2-day Marine Chronometer Clock No.9043 � Chain Fusee Box & KeyExtremely good chronometerMilitary government broad arrow on the box and dialInner and outer box Silvered dialServing ships had at least 3 of these sometime up to 72-Day movementEarnshaws detent escapementcompensation balancesteel helical springBlued steel hands.Original mahogany caseI was told this served on a military vesselDial is signed A Johannsen & Co Makers to the AdmiraltyLockable caseWorking orderMeasures 48cm high by 28cm wide & 18cm deepA very fine & historically fascinating mahogany and brass-lined Royal Observatory two-day marine chronometer. DIAL The 101mm. silvered engraved brass dial has Roman chapters with outer minute track, blued steel hands, the centre is signed A. Johannsen & Co. MAKERS TO THE ADMIRALTY, THE INDIAN GOVt. & ROYAL NAVIES OF Italy, Spain& Portugal. 149 Minories, London. With up-and-down sector beneath XII calibrated 0-48 and seconds ring at VI engraved with the Government Broad Arrow and serial number 9043, both with blued steel hands. MOVEMENT The full-plate movement has well spotted plates with four ring-turned pillars secured with blued steel screws at the top plate which is further engraved with the Government Broad Arrow and serial number 7568, chain fusee and spring barrel, the escapement with cut bimetallic balance with circular heat compensation weights, palladium helical balance spring and Earnshaw-type spring detent escapement with jewelled locking stone. JOHANNSEN & Co. TWO DAYS 9043 with the Government Broad Arrow, recessed brass drop handles to the sides. Original numbered tipsy winding key ASMUS JOHANNSEN Danish born Asmus Johannsen is recorded in Watchmakers & Clockmakers of the World, Volume 2, (Brian Loomes) as working in London from 1863-9. He is also listed in Chronometer Makers of the World (Tony Mercer) as a great maker supplying other makers. He work...