Original A Johannsen 2-day Marine Chronometer Clock No.9043 – Chain Fusee Box & Key

Original A Johannsen 2-day Marine Chronometer Clock No.9043 – Chain Fusee Box & Key Extremely good chronometer Military government broad arrow on the box and dial Inner and outer box Silvered dial Serving ships had at least 3 of these sometime up to 7 2-Day movement Earnshaws detent escapement compensation balance steel helical spring Blued steel hands. Original mahogany case I was told this served on a military vessel Dial is signed A Johannsen & Co Makers to the Admiralty Lockable case Working order A 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 9043, 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 worked from various addresses in London from 1859 before finally moving to 149 Minories in 1865. The firm continued in business until 1937.