Peseux 320

Peseux 320 | - The Movement Archive

Peseux 320


One of the most successful (and some even say, it is one of the most beautiful) flat handwindig movements is the Peseux caliber 320. With a height of only 3mm with or without shock protection it is really unique, concerning the height.
This work can handle all gears and trains in one layer, since it only has got a possible decentral, direct driven, second hand.

Peseux 320: more recent version with shock protection

more recent version with shock protection

Since this movement was built over a longer period of time, it was available in different versions, which can be distinguished on the balance (screw balance, simple three-leg ring balance), shock protection (without or with Incabloc), with our without moveable hairspring stud and with or without decentral second hand train on “6”

On the dial side, the Peseux 320 looks very cheerful. Lots of free space and a yoke winding system.

Peseux 320: Peseux 320 dial side (more recent version)

Peseux 320 dial side (more recent version)

Technical data

Size:10 1/2''' (measured: 23,0mm)
lift angle:52.23°
Number of jewels:17
Escapement:Pallet lever
Balance types: Nickel screw balance
Shock protection(s): none
Balance bearing / direction hairspring:Clockwise
Moveable stud:no/yes
Adjust mechanism:Long regulator arm / hairspring key
  • lever
  • escape wheel, seconds wheel, third wheel
  • center minute wheel, mainspring barrel
Winding mechanism:yoke winding system
Setting lever spring:5 hole(s)
  • s (decentral seconds) (optional)
References: Flume: 1962 15
Mentioning in literature (years): 1964 - 1968

Usage gallery

Peseux 320: Eldor gents watch

Eldor gents watch

Peseux 320: Precimax gents watch  (dial only)

Precimax gents watch (dial only)


The movement in the modern version in copper color with shock protection was donated by Harald Hoeber. Thank you very much!