An exemplar of fine Swiss watchmaking, Logical One by Romain Gauthier is a Grand Prix de Genève-winning creation that contains a revolutionary snail cam and friction-minimizing ruby-link chain, plus sapphire-lined mainspring barrel, to offer nearly two days of constant force – the holy grail of precision watchmaking.
Its beautifully hand-decorated, in-house movement can be admired dial side and through the display back, and is wound using an ergonomic winding pusher integrated into the case band. It features hours and minutes on an off-center sub dial, small seconds, and a 46-hour power reserve indicator on the back.
Logical One Black Titanium features a black ADLC titanium case and anthracite ADLC treated movement. It is available with oven-fired white enamel dial complemented by flame-blued steel hands, or oven-fired black enamel dial with red accents complemented by 18k white gold hands.
The majority of machines run on constant force: cars and planes don’t start running more slowly as fuel runs low and machines receive the same voltage no matter how much electricity is produced. Yet, the power that runs and regulates most high-precision mechanical timepieces varies greatly according to the state of wind of the mainspring.
Constant force, or constant torque, is one of the holy grails of horology and with Logical One, Romain Gauthier reinvented the chain-and-fusee − one of the oldest methods of supplying constant force to a horological movement − making it more reliable, more effective and more constant.
Logical One’s pioneering, multi-patented in-house movement features Romain Gauthier’s 21st-century reinterpretation of a traditional chain-and-fusee style constant force mechanism, on display to the left of the hour-minute sub dial.
Logical One’s movement was conceived, developed, produced, decorated, assembled and regulated at Manufacture Romain Gauthier in the Vallée de Joux, Switzerland. So accomplished is it that Logical One was awarded the prize for Best Men’s Complication watch by the jury of the 2013 Grand Prix d’Horlogerie de Genève – the Oscars of watchmaking.