Ref. 331

Large Unique Sub Second Display

After extensive research and development, Paul Gerber succeeded in designing and building a new escapement for which he filed an application for a patent.
This novel escapement operates on the principle of equal opposing forces. It features a large stationary wheel, a small impulse wheel and anchor. This new escapement incorporates 3 jewels.

No longer available.


For 10 seconds, the tip of the second hand disappears inside the case. Nevertheless, the seconds can be read at all times

The Paul Gerber‘s in-house Calibre 33 shaped hand wind movement is enshrined in a beautiful, White or Rose 18ct Gold tonneau shaped case. The Calibre 33 bridges are decorated with the «Côte de Genève» at a 33 degree angle. The edges of the bridges are chamfered.

The movement incorporates 18ct Rose Gold gearing and screwed down châtons, which give testimony to the precise methodical design and manufacturing of this unique time piece.

Technical data

  • Tonneau shaped case in
      rose gold 18ct.Ref.330
      white gold 18ct. Ref.331
  • Handwinding manufactured movement
  • Large seconds positioned between 6 and 9
  • Guilloche dial, rhodium plated
  • Applied Breguet numbers and indexes in 18ct. gold
  • Hand made blued steel hands by Paul Gerber
  • Bridges incorporate chamfered edges and “Côte de Genève” at a 33 degree angle
  • 18 jewels
  • Fine adjustment regulator
  • 4 screwed gold-châtons
  • Rose gold gearing
  • “Paul Gerber Escapement” (patented)
  • Screwed Breguet balance wheel
  • 36 hour power reserve
  • Tonneau case 34 x 40 x 10.2mm
  • Cylindrical sapphire crystals
  • Case back screwed with 10 screws
  • Waterproof 3 ATM
  • Alligatorstrap with 18ct. gold buckle, enamelled logo
  • Optional:  deployment clasp 18ct. gold
  • Individually numbered



    No longer available