The watch is recorded in the Kullberg ledgers held at the Guildhall Museum. Listed under No.9563 it states the watch was made for Major Rivers on August 14th 1923.




Victor Kullberg stood out as one of the most distinguished chronometer makers of his time, supplying chronometers to the British, Norwegian, Swedish, Russian, and American navies. Born in 1824 in Sweden, he began his apprenticeship with a chronometer maker and later worked briefly with Urban Jurgensen in Copenhagen. In 1850, Kullberg moved to London, where he initiated the production of chronometer escapements for leading manufacturers. Establishing his own business in 1856, he swiftly built his reputation with stem-wind pocket chronometers, earning approximately fifteen prizes in competitions across prominent European institutions. In 1874, he received the Order of Wasa as the Chronometer Maker to Norway and Sweden, along with top honors in Europe, America, and Australia. In 1882, the Astronomer Royal proclaimed that one of Kullberg's chronometers, no. 4066, was among the best ever tested at Greenwich. Kullberg's designs, while closely resembling typical English layouts, featured the reversed fusee system to minimize friction and wear, showcasing the highest standard of workmanship.

Upon his death in 1890, his two sons and nephew, Wennerstrom, took over the business. Following the demise of Kullberg's sons, Wennerstrom continued to run the enterprise with his own son. In 1894, Mr. Sanfrid Lundquist from Sweden became a partner. However, the company ceased operations when its premises were destroyed during World War II.