I think they all would be well within the rage of high-end watch accuracy (better than most, frankly)
Hard to beat JLC's simple hand-wound pieces, e.g., the Reverso Duo, etc.
All will have passed JLC's 1,000 hours Master Control test--a much more robust and superoir test than even Chronometre certifications
Although accuracy is important, JLC is technically capable and dedicated enough that I no longer focus on the accuracy of a particular JLC model and just choose which model I like the most...and thankfully there are a LOT to choose from
Cheers,
John