This vintage group provided me with some great historical research on my Grandfather’s WWI trench watch. I was wondering if anyone on this page might be able to help me with some information about another watch that belonged to my Grandfather that I’m guessing might be linked to his WWII service or possibly bought after the war. The watch is lablelled “Alb. Grossenbacher” on the back with 46 7001.
A google search indicates that Optima, "founded in 1923 at Bienne, made high quality watches with automatic movements from Albert GROSSENBACHER. All pieces was made in-house and strictly controlled to keep this swiss made quality. After the first world war OPTIMA went to USA and back to Germany. At this time, OPTIMA watches were rare due to inactivity of the manufacture.”
I also found that "the movements (notably in their “Davida” line) were made made by Alb(ert) Grossenbacher, Manufacture d’Horlogerie, Grenchen, Swiss; a small respectable Swiss firm; they made movements or wristwatches for the US Army."
The watch is a 32mm case and 16mm bracelet. It seems to run perfectly. I have not opened the back and am looking for someone who might be able to service the watch as I doubt it has been opened in decades.
Thanks in advance for any information this group might have.
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