U-BOAT winding parameters

Definitions:

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

MODEL, DESCRIPTIONMOVEMENT / CALIBERWINDING DIRECTIONTURNS PER DAY (TPD)
Automatico Argento U-925ETA 2824-2Both650
Automatico Argento U-925 IngleseETA 2824-2Both650
Chimera 48 Carbonio GMTCW800
Classico 1001Both650
Classico A925ETA 2824-2Both650
Classico ABETA 2824-2Both650
Classico AB 4ETA 2824-2Both650
Classico ASETA 2824-2Both650
Classico CA925Both650
Classico CASETA 7750CW800
Classico Gold A 18KETA 2824Both650
Classico Gold CA 18KETA 7750CW800
Classico Golden CrownETA 2824Both650
Classico U-1001
EclipseETA 2824Both650
Flightdeck ABOETA A07.111CW800
Flightdeck CA 18KETA 7750CW800
Flightdeck CA 18K3CW800
Flightdeck CA-CB TitaniumETA 7750CW800
Flightdeck CABETA 7750CW800
Flightdeck CAB WHETA 7750CW800
Flightdeck CASETA 7750CW800
Flightdeck CAS BEETA 7750CW800
Flightdeck EclipseBoth650
Flightdeck ElementiumBoth650
Flightdeck Gold BezelETA 7750CW800
Flightdeck Steel BezelETA 7750CW800
Flightdeck TitaniumETA A07.211CW800
NightvisionETA 2824Both650
Thousands of Feet ABETA 2824Both650
Thousands of Feet ASETA 2824Both650
Thousands of Feet CAB3ETA 7750CW800
Thousands of Feet CAS3ETA 7750CW800
Thousands of Feet DiamondETA 2824Both650
Thousands of Feet GoldETA 2824Both650
Thousands of Feet Gold BezelETA 7750CW800
Thousands of Feet RubyETA 2824Both650
U-42 UnicumBoth650

If you could not find your watch model (or caliber) in this table, you may determine your U-BOAT 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.