When Vacheron joined the Vendôme Luxury Group, a subsidiary of Richemont, in 1996, Vacheron’s time-only movement production began to move in-house. In 1938 Vacheron and Jaeger-LeCoultre formalized a joint venture that ran into the 1990s. This collaboration allowed Vacheron Constantin’s to use interchangeable movement parts for the first time and to increase annual production from around 1000 to over 10,000 piece per year. Starting around 1928, Vacheron Constantin began serial production of wrist watches by using ébauche (or base) movements from Jaeger-LeCoultre. Many of these carry the “AR” caliber reference and derive from pocket watch calibers. Parts could not be interchanged between any two movements. Well into the 1920s, Vacheron Constantin produced unique wrist watch movements by hand. The Era of Serial Production With Jaeger-LeCoultre As such, this guide should help the collector of vintage Vacheron Constantin dress watches which were, to use the era’s lingo, intended for gentlemen. This guide is a one-stop reference for Vacheron Constantin’s serially-produced, large-format, round, time-only wristwatch movements of the 20th century. Collector Guide Vacheron Constantin Time-Only Movements of the 20th Century – A Complete Catalog of Serially-Produced Large-Format Round Calibers

1008 calibre springs