I was able to see it at the Manufacture during my last trip, and yes, you're right, this movement won a prize at a Chronometry Contest; too.
Which is important to say, ad you did it, is that I was surprised to not see some reputable manufactures attending this contest.
I thought the same than you: Kudos to all those who attended, without fear to compete.
Maybe some didn't want to compete with " less noble " movements?
JLC have confidence in their watches, and the experience confirmed that they were right!
Best,
Nicolas