A late 19th Century English two day marine chronometer by Kullberg in a brass bound mahogany box. Full plate spotted keywind reverse fusee movement, four turned pillars secured by blue steel screws. Harrison's maintaining power with steel click and blue steel spring. Blue steel barrel ratchet wheel and double toothed click on the spotted barrel bridge. Spotted cock with diamond endstone, two arm compensation balance with two circular weights, small timing screws and large timing nuts, freesprung palladium helical hairspring. Earnshaw spring detent escapement, escape pivots with endstones. The movement secured to the gilt dial plate by three blue steel screws. Engraved signed and numbered silvered brass dial with broad ministry arrow, details of medals awarded and countries supplied. Subsidiaries for seconds and power reserve indication, Roman numerals, blue steel seconds hand, gold hands. Turned brass bowl, sprung rotating shutter to the winding hole, screw brass bezel with flat glass. Brass gimbals and locking mechanism, numbered brass ratchet key. Three tier dark mahogany box, hinged flush brass handles and stringing to the front, top lid covered with a thin layer of plywood. Rectangular ivory plaque below the lock with the maker's name engraved.
This chronometer was purchased from a member of the public during World War 2. Extract from the records at Greenwich. Victor Kullberg was born in Sweden in 1824 and moved to London in 1851 where he established a business making fine watches and chronometers. In addition to selling under his own name he also supplied to many English retailers. He almost always used the fusee in a reverse configuration to reduce friction and wear on the arbors. He experimented with balances on his chronometers patenting flat rim varieties. His chronometers won many medals for their timekeeping in the later half of the 19th Century. The firm continued making chronometers after his death in 1890
