amanico[JLC Moderator]
402225
Foudroyante... Hmmmm, you know my love for this complication. So, what do we have?
Girard Perregaux, of course, is maybe the most famous here, for us.
The famous SF by GP:
This movement is a 7750 reworked by La Joux-Perret. This movement was used by GP, but also other brands such as Hublot, Panerai ( Bill's PAM 246 has this movement ) and Graham, among others.
This GP is one of my favorite, but to me, the best Foudroyante is made by... JLC: The Duometre à Chronographe!
Best,
Nicolas