The Bulova Watch Company had its origins in the United States, but also set up a factory in Switzerland in the 1920s. Throughout the 1930s and 40s, and into the 1950s and 60s, Bulova was one of the most popular watch brands in the United States. Bulova was the first company to advertise on radio and also the first company to advertise on television. Bulova’s line-up of watches in these decades consisted of dress watches, as well as everyday watches.
In 1960, Bulova introduced its revolutionary “Accutron” line of watches, which used a 360 Hz tuning fork instead of a balance wheel as the timekeeping element. Accutron watches and clocks were manufactured until 1977.
Heuer produced several series of watches for Bulova. In the early 1960s, we see Bulova chronographs that are identical to the Heuer Reference 3641 models, and in the 1970s, Heuer produced several chronographs powered by its Calibre 12 / Caliber 15 movements, under the Bulova name.