Roamer

A well known watch maker!  From Wikipedia:

Roamer Electronic Steel (ESA 9150)

Roamer Electronic Steel (ESA 9150)

Roamer was founded in Solothurn, Switzerland, in 1888 by Fritz Meyer. At first, Meyer and employees concentrated on manufacturing cylinder escapements,in 1904 Meyer began assembling watches. In 1905 Meyer joined forces with fellow watchmaker Johann Studeli to form the partnership Meyer and Studeli. In the same year Meyer won a Bronze medal at the Liege World Fair. The partnership continued to develop new calibres and enter them into more World Fairs, winning Silver Medals at the Milan Fair in 1906 and Brussels Fair in 1910.

The earliest identified watch is a unmarked Ladies pocket watch containing an MST 41 cylinder escapement that has London silver hallmarks for 1908.

In 1917 they purchased fellow Soluthurn watchmaker L Tieche Gammeter (LTG). LTG had previously registered the brand “Roamer” in 1908. In 1918 the partnership incorporated into the company Meyer & Studeli SA.

By 1923, production grew to one million units. The top-quality jeweled lever-escapement watches were sold under the brand ‘Roamer’. Cylinder, and later pin-lever, watches were sold under the brands Medana and Meda. In 1932 the company started its own dial production line. In 1945, a representative office opened in New York City and in 1952 Meyer and Studeli officially changed its name to Roamer Watch Co. SA. In 1955, Roamer patented the Anfibio watertight watch case, which proved to be a commercial success. The company launched its first quartzmovement in 1972.

In 2003, Roamer returned to manufacturing mechanical watches. Currently, it remains an independent watchmaking company, selling its products to over 70 countries. Antique Roamer watches are prized by collectors for their craftsmanship and history. Roamer Watch Co. is a member of Federation of the Swiss Watch Industry FH.

Electronics

My only example of a Roamer electric / electronic watch, this one house the first transistorized balance wheel movement, the ESA 9150 Dynotron.  The movement will probably date the watch  to somewhere between 1967 and 1974.

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