Romain Gauthier Logical One Byzantine, Unique Piece in Baguette-Set White Gold Case

Romain Gauthier’s iconic Logical One watch features a revolutionary, friction-minimising ruby-link chain, together with snail cam and sapphire-lined mainspring barrel to offer nearly two days of constant force. This award winning timepiece is now available in a unique diamond set version.

Romain Gauthier LOGICAL ONE BYZANTINE watch

Its beautifully hand-finished, multi-patented in-house movement can be appreciated dial side and through the display back, and is wound using an ergonomic winding pusher on the side of the case. Hours, minutes, small seconds and a 46-hour power reserve indicator on the back make up the displays.

Romain Gauthier LOGICAL ONE BYZANTINE watch

For this one-off creation, Romain Gauthier has made Logical One sparkle like never before by setting its 18k white gold case, bezel, lugs and buckle with 92 baguette-cut VVS diamonds totalling 7.27 ct.

Romain Gauthier LOGICAL ONE BYZANTINE watch

Technical Specifications

Model: Romain Gauthier LOGICAL ONE BYZANTINE

Unique piece

Features and indications
Hours, minutes, small seconds, power reserve indicator
18k white gold case, bezel, lugs and buckle set with 92 baguette-cut VVS diamonds totalling 7.27 ct
Oven-fired white enamel dial
46-hour power reserve indicator
Push-button winding
Innovative chain-and-fusee style constant-force system featuring snail cam and ruby-link chain

Dial and hands
Oven-fired white enamel dial complemented by flame-blued steel hands

Movement and finishing
Dimensions: 35.5mm x 10.5mm
Power reserve: 46 hours
Number of jewels: 63 in total, including 26 for the constant-force chain
Number of components: 359
Balance frequency: 28,800 vph / 4Hz
Movement components in: steel, stainless steel, beryllium copper, brass, titanium and German silver
4 patents: The specific composition and construction of the chain; the constant force system; the push-button winding system; and the high-efficiency profiles of the gear teeth
Finishing: Highest-level haute horlogerie finishing

Material: 18k white gold
Dimensions: 43mm x 14.2mm
Water resistance: 30m/3atm/100ft
Sapphire crystal with interior anti-reflection coating, front and display back
Crown for time setting at 2 o’clock
Push button for winding at 9 o’clock

Strap and buckle
Black alligator leather strap hand-stitched in Switzerland with diamond-set 18k white gold pin buckle

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