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FORTIS
Watch Winding Specifications

Fortis Watch Logo

FORTIS Watches AG (formerly FORTIS Uhren AG), located in Grenchen is a luxury Swiss watches manufacturer, Fortis was founded by Walter Vogt in 1912. Twelve years after its establishment, Vogt set up production with John Harwood, inventor of the automatic wristwatch. In 1926, Fortis released the patented Harwood Automatic, the first self-winding wristwatch, at Baselworld.

MODEL, DESCRIPTION MOVEMENT / CALIBER WINDING DIRECTION TURNS PER DAY (TPD)
Art Edition by Rolf Sachs Both 650
Art Edition Mattern Both 650
Art Edition Planet Gerd Winner CW 800
B-42 Big Day Date Both 650
B-42 Black Automatic: 647.28.71 Automatic 2836-2 Both 650
B-42 Black Chronograph: 638.28.71L Automatic 7750 CW 800
B-42 Black Ltd. Ed. - Black Black: 647.28.81 Automatic 2836-2 Both 650
B-42 Black & Black 2012 Both 650
B-42 Black Ltd. Ed. - Black MARS 500: 647.28.13 Automatic 2836-2 Both 650
B-42 Black Chronograph Titan Carbon CW 800
B-42 Black Mars500 Chrono CW 800
B-42 Chronograph GMT Chronometer C.O.S.C.: 651.10.12 M Automatic 7750 w/GMT Superstructure CW 800
B-42 Diver Chronograph: 640.10 Automatic 7750 CW 800
B-42 Diver Chronograph Alarm CW 800
B-42 Diver Chronograph GMT Automatic 7750 CW 800
B-42 Diver Day/Date: 648.10 Automatic 2836-2 Both 650
B-42 Diver GMT 3 Time Zones: 650.10 Automatic 2893-2 Both 650
B-42 Diver Ltd. Ed. - Chronograph Alarm COSC: 641.10.92 F2001 Alarm CW 800
B-42 Flieger Black Chronograph: 656.18.81 Automatic 7750 CW 800
B-42 Flieger Black Day/Date: 655.18.81 Automatic 2836-2 Both 650
B-42 Flieger Black Ltd. Ed. - Chronograph: 656.18.81 Automatic 7750 CW 800
B-42 Flieger Black Ltd. Ed. - Chronograph Alarm COSC: 657.10.11 F2001-5 Alarm CW 800
B-42 Flieger Black Ltd. Ed. - Cockpit GMT: 672.18.11 Automatic 2893-1 Both 650
B-42 Flieger Black Ltd. Ed. - Day/Date: 655.18.81 Automatic 2836-2 Both 650
B-42 Flieger Chronograph: 656.10 Automatic 7750 CW 800
B-42 Flieger Chronograph Alarm: 636.10 F2001 Alarm CW 800
B-42 Flieger Chrono Alarm Chronometer CW 800
B-42 Flieger Chronograph GMT Automatic 7750 CW 800
B-42 Flieger Cockpit Both 650
B-42 Flieger Cockpit Limited Edition Both 650
B-42 Flieger Day/Date: 645.10, 655.10 Automatic 2836-2 Both 650
B-42 Flieger Diver Chronograph Automatic 7750 CW 800
B-42 Marinemaster Chronograph: 638, 671.10 Automatic 7750 CW 800
B-42 Marinemaster Chronograph Alarm: 639 F2001-5 Alarm CW 800
B-42 Marinemaster Day/Date: 647.11, 670.10 Automatic 2836-2 Both 650
B-42 Marinemaster Ltd. Ed. - Chronograph Alarm: 637.10.41, 639.10.41 F2001 Alarm CW 800
B-42 Marinemaster Ltd. Ed. - Chronograph Alarm Chronometer COSC: 673.10.41 F2001 Alarm CW 800
B-42 Official Cosmonauts Chronograph: 630, 638.10 Automatic 7750 CW 800
B-42 Official Cosmonauts Chronograph Alarm: 639.22 F2001 Alarm CW 800
B-42 Official Cosmonauts Chronograph Alarm Titanium CW 800
B-42 Official Cosmonauts Chronograph Diamond: 630 Automatic 7750 CW 800
B-42 Official Cosmonauts Chronograph GMT Automatic 7750 CW 800
B-42 Official Cosmonauts Chronograph Titanium: 659.27 Automatic 7750 CW 800
B-42 Official Cosmonauts Day/Date: 610, 647.10 Automatic 2836-2 Both 650
B-42 Official Cosmonauts Day/Date Mars Mission Both 650
B-42 Official Cosmonauts Day/Date Titanium: 658.27 Automatic 2836-2 Both 650
B-42 Official Cosmonauts Edition Titan Carbon CW 800
B-42 Official Cosmonauts GMT Both 650
B-42 Official Cosmonauts GMT 3 Time Zones Automatic 2893-2 Both 650
B-42 Official Cosmonauts Ltd. Ed. - Chronograph Alarm COSC: 660.27.11 F2001 Alarm CW 800
B-42 Official Cosmonauts Ltd. Ed. - Chronograph Gold Edition: 630.50.12 Automatic 7750 CW 800
B-42 Official Cosmonauts Ltd. Ed. - Chronograph Titanium Edition: 638.27.91 M Automatic 7750 CW 800
B-42 Official Cosmonauts Ltd. Ed. - Chronograph Titanium Edition (2004): 644.27.11 Lemania 5100 CCW 800
B-42 Official Cosmonauts Ltd. Ed. - Day/Date Titanium MARS 500: 658.27.81 Automatic 2836-2 Both 650
B-42 Official Cosmonauts Ltd. Ed. - MARS 500: 658.27.81 Automatic 2836-2 Both 650
B-42 Pilot Professional Chronograph: 635.10 Automatic 7750 CW 800
B-42 Pilot Professional Chronograph Alarm: 636.22 F2001 Alarm CW 800
B-42 Pilot Professional Chronograph Alarm Titanium F2001 Alarm CW 800
B-42 Pilot Professional Chronograph GMT Automatic 7750 CW 800
B-42 Pilot Professional Chronograph CW 800
B-42 Pilot Professional Day/Date: 645.10 Automatic 2836-2 Both 650
B-42 Stratoliner Chronograph: 665.10 Automatic 7750 CW 800
B-42 Stratoliner Black & White Automatic 7750 CW 800
B-47 Big Black Both 650
B-47 Calculator: 666.10 Automatic 2893-2 Both 650
B-47 Calculator Ltd. Ed. - GMT 3 Time Zones: 666.10.31 Automatic 2893-2 Both 650
B-47 Mysterious Planet Both 650
B-47 Worldtimer GMT Both 650
Chronograph Diver (Lemania 5100) CCW 800
Cosmonauts Chrono Alarm CW 800
Cosmonauts Chronograph (Lemania 5100) CCW 800
Cosmonauts Pilot (Lemania 5100) CCW 800
Cosmonauts Space Edition (Lemania 5100) CCW 800
Cargo Spacematic Ltd. Ed.: 623.22.81 Automatic 7750 CW 800
Edition Winner Automatic: 595 Automatic 2824-2 Both 650
Edition Winner Chronograph: 597 Automatic 7750 CW 800
Edition Winner Platin Alarm Chronograph Automatic: 599 F2001 Alarm CW 800
F-43 Flieger CW 800
F-43 Flieger Big Day Big Date Both 650
F-4F Phantoms Phorever CW 800
Flieger 24 H: 621.10 Automatic 2893-2 Both 650
Flieger Automatic: 595.10, 620.10 Automatic 2824-2 Both 650
Flieger Automatic 24H: 596.10, 621.10 Automatic 2893-2 Both 650
Flieger Big Date: 615.10 Automatic 2836-2 Both 650
Flieger Black Automatic: 647 Automatic 2836-2 Both 650
Flieger Black Chronograph: 638 Automatic 7750 CW 800
Flieger Black Ltd. Ed. - 24h: 596.18 Automatic 2893-2 Both 650
Flieger Chronograph: 597.10, 597.11, 622.10 Automatic 7750 CW 800
Flieger Chronograph Automatic Alarm: 599.10 F2001 Alarm CW 800
Flieger Chronograph F-43 Alarm GMT CW 800
Flieger Cockpit Automatic 2824-2 Both 650
Flieger GMT: 596.10, 621.10 Automatic 2893-2 Both 650
Flieger GMT Chronometer: 598.10 Automatic 7750 CW 800
Flieger Ltd. Ed. - NATO Tigers: 595.10.4 Automatic 2824-2 Both 650
Flieger Ltd. Ed. - Chronograph AWACS: 597.11.11 Automatic 7750 CW 800
Flieger Ltd. Ed. - Chronograph Gold Edition 18KTI: 597.50.12 Automatic 7750 CW 800
Flieger Ltd. Ed. - Chronograph US Navy SWTI: 597.11 Automatic 7750 CW 800
Flieger Ltd. Ed. - Steel: 597.11.12 LC 05 Automatic 7750 CW 800
Flieger Ltd. Ed. - Steel / 18KT Gold: 59.60.12.LC 01 Automatic 7750 CW 800
Jumping Hour Both 650
Limited Art Edition - IQ - ROLF SACHS: 596.18.61L Automatic 2824-2 Both 650
Limited Art Edition - MALTERN: 623.22.15 CW 800
Limited Art Edition - PLANET - GERD WINNER: 638.28.17 K Automatic 7750 CW 800
Limited Art Edition - SPACE ART - FRANK BURMANN Lemania 5100 CCW 800
Limited Art Edition - Spacematic PIT STOP - Jean Tinguely Automatic 2824-2 Both 650
Official Cosmonauts Chronograph: 630.10 Automatic 7750 CW 800
Maerinemaster Vintage Both 650
Official Cosmonauts Chronograph Diamond: 630.14 Automatic 7750 CW 800
Official Cosmonauts Day/Date: 610.10, 610.22 Automatic 2836-2 Both 650
Official Cosmonauts GMT: 611.22 Automatic 2893-2 Both 650
Official Cosmonauts Chronograph Alarm: 607.22 F2001 Alarm CW 800
Official Cosmonauts Chronograph Cosmonaut, Gold: 630.22 Automatic 7750 CW 800
Official Cosmonauts Chronograph Cosmonaut: 602.22, 602.60 Lemania 5100 CCW 800
Official Cosmonauts Chronograph Diver: 631.22 Automatic 7750 CW 800
Official Cosmonauts Chronograph Diver: 605.22 Lemania 5100 CCW 800
Official Cosmonauts Chronograph GMT Chronometer: 603.22, 603.60 Automatic 7750 CW 800
Official Cosmonauts Chronograph Pilot: 606.22 Lemania 5100 CCW 800
Official Cosmonauts Chronograph Pilot GMT: 632.22 Automatic 7750 CW 800
Official Cosmonauts Ltd. Ed. - Chronograph Alarm Platinum Edition: 607.70.11, 607.70.12 F2001 Alarm CW 800
Official Cosmonauts Ltd. Ed. - Chronograph MIR: 602.22.11 Lemania 5100 CCW 800
Official Cosmonauts Ltd. Ed. - Chronograph Space Edition ISS: 602.22, 602.60.11 Lemania 5100 CCW 800
Official Cosmonauts Ltd. Ed. - Steel / 18KT Gold: 630.60.12
Pilot 42B Both 650
Pilot Professional Big Date: 615.22 Automatic 2836-2 Both 650
Pilot Professional Big Date Black: 615.18 Automatic 2836-2 Both 650
Pilot Professional Chronograph Alarm: 599.22 F2001 Alarm CW 800
Pilot Professional Chronograph Alarm Black: 599.18 F2001 Alarm CW 800
Pilot Professional Chronograph Auto: 597.22 Automatic 7750 CW 800
Pilot Professional Chronograph Black: 597.18 Automatic 7750 CW 800
Pilot Professional Day/Date: 595.22 Automatic 2836-2 Both 650
Pilot Professional Day/Date Black: 595.18 Automatic 2836-2 Both 650
Pilot Professional GMT: 596.22 Automatic 2893-2 Both 650
Pilot Professional GMT Black: 596.18 Automatic 2893-2 Both 650
Pilot Professional Ltd. Ed. - Chronograph Alarm Platinum: 599.70.11 F2001 Alarm CW 800
Pilot Professional Ltd. Ed. - DUCATI: 597.22.141.21 Automatic 2836-2 Both 650
Pit Stop Jean Tinguely Both 650
Spaceleader Ltd. Ed. - By VOLKSWAGEN DESIGN: 661.20.31 K Automatic 7750 CW 800
Spacematic Chronograph: 625.22 Automatic 7750 CW 800
Spacematic Chronograph Alarm: 627.22 F2001 Alarm CW 800
Spacematic Day-Date: 623.22 Automatic 2836-2 Both 650
Spacematic GMT: 624.22 Automatic 2893-2 Both 650
Spacematic Ltd. Ed. - Swiss II Fighter Squadron: 625.22 Automatic 7750 CW 800
Spacematic Limited Edition 2012 Both 650
Spacematic Yuri Gagarin GMT Both 650
Spacemleader Chrono by Volkswagen CW 800
Square Automatic: 653.10 Automatic 2836-2 Both 650
Square Chronograph: 667.10 Automatic 7750 CW 800
Square Ltd. Ed. - Swiss International Airlines UTC: 652.10.148 Automatic 2893 Both 650

If ever you are unable to find your watch model in this table, here's an easy way to determine the winding requirements for your FORTIS watches.

  • Select the combined winding mode (CW+CCW) and the minimal number of turns per day (TPD).
  • 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 increment.

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