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DU BOIS & FILS 1785 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) |
|---|---|---|---|
| 1785 | |||
| Grande Date | DD 4900 | Both | 650 |
| Grande Prix d'Europe Formula 1 | Valjoux 7750 | CW | 800 |
| Grande Rectangulaire | ETA 2671 | Both | 650 |
| Henry Du Bois | Valjoux 7750 | CW | 800 |
| Le Chronographe 1910 | ETA 7751 | CW | 800 |
| Luna II | Valjoux 7750 | CW | 800 |
| Montre Calendrier 1798 | ETA 2892 | Both | 650 |
| Montre Calendrier 1798 | AS 1895 | – | – |
| Montre Calendrier Ltd. Ed. | DD 9231 | – | – |
| Montre Tonneau | Both | 650 | |
| Panorama Grande Date or GMT | DD 4500 | Both | 650 |
| Perpetuelle | Valjoux 7751 | CW | 800 |
| Racing IV | Valjoux 7750 | CW | 800 |
| Regular 1 | Valjoux 7750 | CW | 800 |
| Tonneau Calendrier | Both | 650 | |
| Tonneau w/Grande Date & 2nd Timezone | TT651 | Both | 650 |
| 1786 | |||
| Grande Date | DD 4900 | Both | 650 |
| 1787 | |||
| Concept Two | CW | 800 | |
| DBF001-01 | Both | 650 | |
| DBF001-02 | Both | 650 | |
| DBF001-03 | Both | 650 | |
| DBF001-04 | Both | 650 | |
| DBF001-05 | Both | 650 | |
| DBF001-06 | Both | 650 | |
| DBF002-01 | CW | 800 | |
| DBF002-02 | CW | 800 | |
| DBF002-03 | CW | 800 | |
| DBF003 Manufacture | Both | 670 | |
| Grande Prix d'Europe Formula 1 | Valjoux 7750 | CW | 800 |
| 1788 | |||
| Grande Rectangulaire | ETA 2671 | Both | 650 |
| 1789 | |||
| Le Chronographe 1910 | ETA 7751 | CW | 800 |
| 1790 | |||
| Luna II | Valjoux 7750 | CW | 800 |
| 1791 | |||
| Montre Calendrier 1798 | ETA 2892 | Both | 650 |
| 1792 | |||
| Montre Calendrier 1798 | AS 1895 | CW | 820 |
| 1793 | |||
| Perpetuelle | Valjoux 7751 | CW | 800 |
| 1794 | |||
| Regular 1 | Valjoux 7750 | CW | 800 |
If you could not find your watch model (or caliber) in this table, you may determine your DU BOIS & FILS 1785 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.
