Two Day Marine Chronometer by Kullberg


Signed   Victor Kullberg   105 Liverpool Rd London N. - Maker to the Admiralty  - The Indian & Italian Governments  -  Ten Gold Medals Awarded * Diploma of Honour Sole & Highest Awards
Circa   1910
Diameter [dial]   104 mm         

Out of stock


A 20th Century English two day marine chronometer by Kullberg.  Full plate spotted keywind reverse fusee movement marked with the broad ministry arrow above “I”, four turned pillars secured by blue steel screws.  Harrison’s maintaining power with steel click and blue steel spring. Polished steel barrel ratchet wheel and double toothed click on the spotted barrel bridge.  Spotted cock with diamond endstone in a polished steel setting.  Two arm compensation balance with two circular weights, Kullberg’s later form of middle-error temperature compensation, large timing screws and 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, “I” and date, subsidiaries for seconds and power reserve indication, Roman numerals, blue steel hands.  Numbered turned brass bowl, rotating shutter to the winding hole, screw brass bezel with flat glass.  Brass gimbals and locking mechanism, brass ratchet key.  Three tier mahogany box, hinged flush brass handles, later top lid.  Rectangular plaque engraved with the maker’s name, number, date, broad ministry arrow and “Two Days”.  Included is a photocopy of a letter to the Director General of Stores at the India Office signed by the Astronomer Royal recommending the purchase of this chronometer.

Purchased by the India Office for Colaba Observatory, Bombay in 1910.  The letter "I" below the broad arrow indicates it was used in India.  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.