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B.R.M. 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) |
|---|---|---|---|
| 3MVT-52 | 2671 | Both | 650 |
| CR-44 | 7750 | CW | 800 |
| CT-48 | 7753 | CW | 800 |
| G45-T | 7753 | CW | 800 |
| GP40-B | 7753 | CW | 800 |
| GP40 l - OR | 7753 | CW | 800 |
| GP- 44 Automatic Chrono | 7753 | CW | 800 |
| MT-51/ 49 N Automatic Chrono | 7753 | CW | 800 |
| MTD-53/35 N Automatic | 2671 | Both | 650 |
| MRT-48 | A07.161 | CW | 800 |
| PMT-40/43-N | 2824-2 | Both | 650 |
| S-44 Automatic Chrono | 7753 | CW | 800 |
| SCR-48 | 7753 | CW | 800 |
| SCR-CN Racing | 7753 | CW | 800 |
| SCR-CO Racing | 7753 | CW | 800 |
| SCR Racing | 7753 | CW | 800 |
| SP-44-BN-Gold | 7753 | CW | 800 |
| V5-25 | 2671 | Both | 650 |
| V6 Automatic | 2824-2 | Both | 650 |
| V6-44 Automatic | 2824-2 | Both | 650 |
| V7 Automatic | 2824-2 | Both | 650 |
| V7-38 Automatic | 2824-2 | Both | 650 |
| V8 Automatic Chrono | 7753 | CW | 800 |
| V8-44 Automatic Chrono | 7753 | CW | 800 |
| V9 Automatic Chrono | 2894-2 | Both | 650 |
| V11-41 | 7753 | CW | 800 |
| V12 Automatic Chrono | 7753 | CW | 800 |
| V12-44 Automatic Chrono | 7753 | CW | 800 |
| V12-44 Automatic Chrono Gold | 7753 | CW | 800 |
| V14 Automatic Chrono | 7753 | CW | 800 |
| V14-44 Automatic Chrono | 7753 | CW | 800 |
| V16-46 | 7753 | CW | 800 |
| V18-48-TN | 7753 | CW | 800 |
| WL-44 OIR Automatic | 2671 | Both | 650 |
If you could not find your watch model (or caliber) in this table, you may determine your B.R.M. 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.
