
The finish on this movement is just too pedestrian and not as refined as the one you find you see on jlcs. Also the accuracy regulation system is not a known device that jlc have used or uses. I have seen the logo of an ebauche maker under the balance wheel, it is a reworked Anton Shild AS 1951

AS movements rank among the best and most reliable movements ever made. They are avery accurate through time and were of high quality.
I think the line called Club was one of them, housing, but I have to check, an Eta movement.
The Chronos didn't use JLC movements, too: U.G or Valjoux.
The Vintage Diver Vintage houses an outsourced movement, too: ETA.
So, it doesn't amaze me that this one could fit into the exceptions.
Best,
And thanks, Georges.
Nicolas.
The JAEGER watches are often using eta or unitas handwound or automatic movements, they were cased and assembled in the French JAEGER manufacturing plant . That is all I know.
best regards
georges