Jules Jürgensen, Copenhagen, made in Switzerland, No. 15525, circa 1905.Very fine 18K gold slim minute-repeating watch with split-seconds chronograph and 30-minute register in original Jules Jürgensen wooded fitted box. Four-body, "bassine et filets", solid, monogrammed back, gold hinged cuvette. Notes Jules Frédéric Jürgensen (1808-1877).The son of Urban Jürgensen, very eminent watchmaker himself. Jules was born in Le Locle but as a child moved with his parents to Denmark. In 1830, after the death of his father the company was taken over by Jules and his brother Louis Urban. Three years later, in 1833 Jules returned to Le Locle and built up a great business. His family business was carried out by his brother and in 1886 was sold to one of the employees, H. Kiens.,and was then carried on by his sons, Jules (1837-1894) and JacquesAlfred (1842-1912) and later by the House of Heuer. Jürgensen had many titles and honors, became watchmaker to the King of Denmark, was made a Knight of the Légion d'Honneur and Knight of the Royal Order of Dannebrog. Between 1870 and 1876 he was a member of the commission of surveillance of the Geneva School of Horology, along with Ekegren, Potter and others; he was a member of many commissions in Switzerland judging different horological contests. He was apparently considered in Switzerland tobe one of the best watchmakers. He stamped most of his watches on the pillar plate under the dial: Jules Jurgensen of Copenhagen.