Description
The Felsa 4022 belongs to the class of very small round ladies’ movements. With a diameter of only 7 3/4 lignes it is almost of the the smallest available size. Colored in copper it looks very nice and gives a nice contrast to the otherweise silver toned movements.
The movement itself is more or less standard. With its nicely shaped briges and the Incabloc-secured screw balance it is visually very appealing. It also contains a deck jewel for the anchor wheel and Felsa-unusual red anchor pallets, which are standard elsewhere.
This movement was also available with a date indication, as Felsa 4025.
This movement was originally made by AM, and had the caliber number AM 382.
Technical data
| Manufacturer: | Felsa |
| Caliber: | 4022 |
| Caliber base: | Felsa 4020 |
| Size: | 7 3/4''' |
| A/h: | 18000 |
| Number of jewels: | 17 |
| Escapement: | Pallet lever |
| Balance types: |
Nickel screw balance |
| Shock protection(s): |
Incabloc |
| Balance bearing / direction hairspring: | Clockwise |
| Moveable stud: | no |
| Adjust mechanism: | Hairspring key |
| Construction: |
|
| Winding mechanism: | yoke winding system |
| Setting lever spring: | 2 hole(s) |
| References: |
Flume: 1962 2 |
| Mentioning in literature (years): | 1964 - 1965 |