Are we talking about style, complication, horological merit? I think you need to think that through to find the piece you are looking for. Instinctively I would say the Resonance or the Optimum. Of those two the Resonance is more “unique” as no other brand has been able to make one in the sense of how FP Journe has done it. Some have said the Tourbillon. I think, especially the very earliest at most significant. I also want to mention the Vagabondage 1,2,3 I think those are very special, unique and fantastic watches but not often talked about due to their limited numbers. The Chronometre Souverain was gifted to George Daniels and FP I extremely proud of this piece. And for a very good reason,I want to add. That’s just an extremely good watch, IMO.
