In the 1970s, two Ebauches SA subsidiaries, ETA and FHF, produced lines of movements that were designed to be interchangeable. These “Gabarit” movement families were ETA’s 2850 and FHF’s 400.
| Hand-Winding | Automatic | |
|---|---|---|
| Time-Only | FHF 400 | |
| Date | FHF 401 | FHF 411 |
| Day-Date | FHF 402 | FHF 412 |