but no it does not use the F.Piguet 1185. The F.Piguet 1185 was last used in the 38mm Pasha Chronographs, which are no longer in production. The watch you mentioned is the current 42mm Pasha chronograph which uses a JLC movement as a base. I do not own a 42mm Pasha so I can't comment on any ownship experience with that model.
Best regards,
Dino