Romain Gauthier has officially announced two final limited editions of its most iconic caliber, Logical One. Revealed to the public in 2013, Logical One is the iconic model that propelled the brand to the rank of recognized Swiss Haute Horlogerie brands. It brilliantly won the GPHG men's complication award thanks to its “chain-and-fusee” constant-force mechanism. Only 20 pieces in white gold and 20 pieces in titanium will be produced through 2023, identifiable with a baguette diamond and numbered "N°X/20". To reinforce the exclusivity of these two editions, the brand is pleased to introduce the historical porcelain as a custom possibilty for the dials. All the Logical One timepieces, including special requests, unique pieces, will be considered as part of these final editions.