MB&F winding parameters

Definitions:

  • «CW» - Clockwise winding direction;
  • «CCW» - Counterclockwise winding direction;
  • «Both» - Combined mode (Clockwise + Counterclockwise);
  • «» - Undefined;

MODEL, DESCRIPTIONMOVEMENT / CALIBERWINDING DIRECTIONTURNS PER DAY (TPD)
HM1CCW500
HM2CCW500
HM2 OnlyWatch 2009CCW500
HM2 SV 2010CCW500
HM2.2 Black BoxCCW500
HM3CCW500
HM3 FrogCCW500
HM3 JWLRYMACHINECCW500
HM3 MegaWindCCW500
HM3 MoonMachineCCW500
HM5CCW500
HM5RTCCW500

If you could not find your watch model (or caliber) in this table, you may determine your MB&F 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.