


In Paris or in Italy?
Best regards,
George
Your watch looks like a very nice Duoplan.
Congrats!
JLC made these watches for a very long time (mid- 1920 to mid-1960).
The very early watches were mostly rectangular.
From the shape of hands and index a qualified guess would be between - end of 1940’s to early 1950’s.
Here are a few examples;
1935
1949
Ad with both JLC and Hermes from 1949…
In the mid 1950’s JLC changed to mostly use hands to spade hands.
1956
Hope this helps.
Best
Blomman