Paul Ditisheim

Paul Ditisheim was born into a wealthy family in 1868 in La Chaux-de-Fonds.[1] The Ditisheims belonged to a small social circle of industrialist families that were at the forefront of the Swiss watch industry at the time.[2] His father, Gaspard, and uncle, Maurice Ditisheim (or Ditesheim), were the founders of the established watch company Vulcain, which was one of the many watch companies started by Jewish families in the region.[3][4]

Ditisheim studied at the Ecole Industrielle and the Horological School of La Chaux-de-Fonds. He worked in his family’s company, Vulcain, until 1892 when he founded his own brands: Solvil (whose items were often signed Paul Ditisheim) and Titus (whose items were generally marked separately).[5]

Paul Ditisheim developed a new generation of chronometers, improving them through his studies on the impact of atmospheric pressure and magnetic fields.[6] He invented the affix balance. By 1903, his watches were awarded by the Kew and Neuchâtel Observatories contests. In 1912, he won the world’s chronometric record of the Royal Kew Observatory.[7] He also worked closely with Physics Nobel prize winner Charles-Edouard Guillaume and has been considered "the father of the modern chronometers". According to Professor M. Andrade of the Besançon Astronomical Observatory, Ditisheim’s work “constitutes the most important progress of modern chronometry”.[8]

In the 1920s, Paul Ditisheim handed over the Solvil et Titus and Paul Ditisheim brands to wealthy Swiss entrepreneurs and captain of industry, Paul Bernard Vogel. Vogel, heir to a family of industrialists and married to the heiress of the prominent Eberard family, was also a member of the Swiss watch industry’s elite. Vogel moved the company headquarters to Geneva, which boosted the company's size and popularity, leading to expanded business throughout the world.[9]

In 1925, after selling his company, Ditisheim left La Chaux-de-Fonds and moved to Paris, where he collaborated with an earth oils chemist to research and develop watch and clock oils. Paul Ditisheim was still in Paris when France was invaded by the Germans during World War II. Persecuted for being Jewish, he fled to Nice, where he lived until a year before his death.[10]

He died in Geneva in 1945 at the age of 76.