Baume Mercier Tronosonic. When esa released their chronograph tuning fork movement esa 9210 baume and mercier were one of the few companies to produce a chronograph tuning fork watch. Baume mercier yellow gold manual winding geneve 18k gold mechanical diamond pave dial pre owned.
Their company quickly developed and forged a good reputation through the creation of exceptional pieces integrating leading edge innovations with the motto. They used esa tuning fork movements such as the model above. When esa released their chronograph tuning fork movement esa 9210 baume and mercier were one of the few companies to produce a chronograph tuning fork watch.
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Baume mercier manufacturer of affordable luxury swiss watches since 1830. Baume mercier bm19164 tronosonic 1970 baume mercier still is a reputable watch brand with various ups and downs over the decades since 1830. The esa 9210 is a fascinating and complex movement and i have devoted a page to it. Baume mercier capeland listing.