Ultra Décolletage SA will be exhibiting at the EPHJ trade show from June 11 to 14, 2024 Venue: Palexpo Geneva Booth: C46


Parts and materials

Ultra Décolletage SA offers a wide range of high-quality perfectly finished products, and can machine any material up to a diameter of 22 mm to produce short and long production runs at highly competitive prices. It has over a hundred years of know-how in the production of microscopic parts and all kinds of cutting procedures, including conical, inclined and frontal.


Among others, it produces the following watch components:

  • Barrel-arbor
  • Barrel-drums and barrel-covers
  • Pinions
  • Winding-pinions and sliding pinions
  • Pull-out pieces
  • Screws
  • Screw feet
  • Balance-staffs
  • Chronograph staffs
  • Pallet staffs
  • Split-second staffs
  • Stem extenders
  • Split stems
  • Winding stems
  • Column-wheels
  • Wheels

Certain standard parts, such as staffs and stem extenders, are available for immediate delivery.

Sample holders for scanning electron microscopes are also available.


Materials frequently machined:

Steel 20AP

Finemac steel

Stainless steel X35ST+

Stainless steel 4C27A

Beryllium copper

Durnico steel


Nickel silver