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ETA winding parameters
Definitions:
- «CW» - Clockwise winding direction;
- «CCW» - Counterclockwise winding direction;
- «Both» - Combined mode (Clockwise + Counterclockwise);
- «–» - Undefined;
| MODEL, DESCRIPTION | MOVEMENT / CALIBER | WINDING DIRECTION | TURNS PER DAY (TPD) |
|---|---|---|---|
| C0.211 | CCW | 800 | |
| 2000-1 | CW | 650-800 | |
| 2004-1 | CW | 650-800 | |
| 2094 | CW | 650-800 | |
| 2651, 2658 | Both | 650 | |
| 2660 | Both | 650 | |
| 2670 | Both | 650 | |
| 2671 | Both | 650 | |
| 2678 | Both | 650 | |
| 2681 | Both | 650 | |
| 2685 | Both | 650 | |
| 2688 | Both | 650 | |
| 2801-2 | Both | 650 | |
| 2804-2 | Both | 650 | |
| 2821 | Both | 650 | |
| 2824-2 | Both | 650 | |
| 2834-2 | Both | 650 | |
| 2826-2 | Both | 650 | |
| 2836-2 | Both | 650 | |
| 2842 | Both | 650 | |
| 2846 | Both | 650 | |
| 2890, 2891 | Both | 650 | |
| 2892/A2 | Both | 650 | |
| 2893-1/2/3 | Both | 650 | |
| 2894-2 | Both | 650 | |
| 2894-S2 | Both | 650 | |
| 2895-1/2 | Both | 650 | |
| 2896 | Both | 650 | |
| 2897 | Both | 650 | |
| 7750 | CW | 800 | |
| 7751 | CW | 800 | |
| 7753 | CW | 800 | |
| 7754 | CW | 800 | |
| Valgranges A07.111 | CW | 800 | |
| Valgranges A07.161 | CW | 800 | |
| Valgranges A07.171 | CW | 800 | |
| Valgranges A07.211 | CW | 800 |
If you could not find your watch model (or caliber) in this table, you may determine your ETA winding mode on a trial basis. You should select the combined winding mode (CW+CCW) and the minimal number of turns per day (TPD). Then place your watch into the winder and check after a few days how accurate your watch shows the time. If it runs behind, it is necessary to increase the number of TPD by one step.
