I can't help I'm afraid, my only experience of the crossover was a Vacheron coin watch many years ago which ran a super slim JLC.
As far as I'm aware they are both held in equally high regard - it's not like the difference between a company swapping from ETA to in-house and instantly becoming more desirable, I reckon the values will be roughly the same.
I only wanted to address the irony of a member named UK Bowel Doc having to ask about "movements". *snigger*.
Sorry, it's late.