Dear forum member,
greetings from new member. I have acquired this vintage longines dated 40's and has a caliber 10L. the dial looks good, but the case, I have a huge doubt. Based on my searching, it seems that some longines watch for french market has no marking because the case was outsourced.
kindly give your opinions
more images https://imgur.com/a/crnyob8
best regards,

thank you for your kind reply dr debbie.
i think this longines 10L is cased with all gold case. made in france. one suggestion also because of big number index.
but i have yet to find any evidence.
the caseback has no marking and only labeled as "made in france" & TK Co