Hello all

Hopefully somebody can steer me in the right direction.

I have this early LeCoutre bumper (redial) and the only way I could estimate its production date was to compare it’s serial number with other similar watches I found on the web.

I know that “LeCoultre” branded watches were for export to the US market. Does that mean that “Jaeger-LeCoultre” watches had a different serial number range?

I may be blind but I couldn’t find solid info on the subject.

Cheers

Faz