Longines is commemorating 175 years by enlarging its museum in its hometown of Saint-Imier, Switzerland, and publishing a work on the socioeconomic development of its birthplace.

The luxury watch brand kicked off its celebration in March when the Swatch Group subsidiary inaugurated two new rooms in its museum. One traces the last 50 years of watchmaking at Longines and has hundreds of models on display, including the Longines Flagship (1957), the L990 (1977), the DolceVita (1997), and the Evidenza (2003). In the adjacent exhibition room are 800 établissage books with details on the millions of watches produced by Longines since the 19th century. Also on display are company advertising posters from the 19th century to modern times.

Meanwhile, Longines has published a new book by Laurence Marti, a sociologist and historian, titled A Region in Time, about the development of the watch industry in the Saint-Imier Valley since 1700. Longines is the only company still in operation that was born, grew, and reached maturity there. There are 3,000 copies of the book, which is available in both French and English.