... i was thinking about the tourbillon because as you've rightly mentioned, there is something missing in the catalogue of JLC in tourbillons. BUT most importantly, the main weakness was in the design of the tourbillon, the cage, etc... IMO with the duometre, the tourbillon will fit naturally in the dial. Of course, comparison with the FP journe will be inevitable, but it will be interesting to see how JLC can pull this one out. If they add a GMT feature or something else to spoil it ( they did add a perpetual foudroyante in a mellow moon complication ), in that case, its hopeless... back to gyro II
And you, Nicolas, back to your lamp, with or without oil ... Lol...