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BMW 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) |
|---|---|---|---|
| BMW 335 Dualtime | ETA 2678 | Both | 650 |
| BMW R-62 | ETA 2824-2 | Both | 650 |
| BMW R100RS | ETA 2824-2 | Both | 650 |
| Collection '97, Automatic Chronograph | Valjoux 7750 | CW | 800 |
| Collection '99, Automatic Chronograph, Certified Chronometer COSC | Valjoux 7750 Chronometer COSC | CW | 800 |
| M-Style Automatic Chronograph | ETA 2045/2824-2 | Both | 650 |
| "Mille Miglia" Traditions Chronograph | ETA 2040/2824-2 | Both | 650 |
| Mobile Tradition BMW 327 | ETA 2671 | Both | 650 |
| Mobile Tradition Chronograph 315/1 | ETA 2045/ 2804 | Both | 650 |
| Tachometer Watch Edition 3 BMW 328 | ETA 2846 Automatic | Both | 650 |
| Tachometer Watch Edition 5 BMW 507 | ETA 2846 Automatic | Both | 650 |
| Tachometer Watch Edition 7 | ETA 2846 Automatic | Both | 650 |
| Tachometer Watch Edition 9 BMW Isetta | ETA 2846 Automatic | Both | 650 |
| Tachometer Watch Edition 11 BMW 327 | ETA 2846 Automatic | Both | 650 |
| Tachometer Watch Edition 12 BMW 2002 ti | ETA 2846 Automatic | Both | 650 |
| Traditions Chronograph Mille Miglia | Both | 650 |
If you could not find your watch model (or caliber) in this table, you may determine your BMW 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.
