Fortis Watches
Last Updated: November 14, 2024By

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Welcome, Fortis enthusiasts! Have you ever found yourself marveling at your exquisitely crafted Fortis watch, only to realize that you’re unsure about the proper winding technique? Worry not, because today’s blog post is here to guide you through the delicate intricacies of winding a Fortis watch with precision and care, ensuring its longevity and enhancing its already mesmerizing allure.

How to Wind a Fortis Watch Correctly: A Simplified Guide

Identifying Your Watch Type

Fortis has a remarkable range of watches, from hand-wound and self-winding models to quartz options. While most of their collection focuses on hand-wound and self-winding watches, they also offer quartz models for those who prioritize accuracy with minimal maintenance. 

The Official Cosmonauts collection, in particular, offers a variety of styles and designs, so there’s truly a Fortis for everyone.

Before winding your watch, it’s essential to know its type. Fortis manual-wind watches need regular winding to maintain their power, while self-winding models stay wound through natural wrist movement or by using a watch winder.

1. Wearing the Watch Daily

When you wear your Fortis watch frequently, your arm’s natural movement winds the watch’s movement, ensuring accurate timekeeping without manual winding.

2. Manual Winding – Rotating the Crown

To manually wind your watch, set the crown to position 0, and wind it clockwise 20 to 30 times. This initial winding will activate the movement, which can then continue to self-wind as you move throughout the day.

Note: Some models have a screw-down crown. Be sure to unscrew it fully before winding, and once you’re finished, screw it back in to maintain the watch’s water resistance.

3. Automatic Winding – Using a Fortis Watch Winder

If you own multiple luxury watches or don’t wear your Fortis daily, a watch winder can be a practical solution. Reputable brands like Mozsly and Wolf make winders that mimic wrist motion, keeping your watch wound without the need for manual winding.

How Does an Automatic Watch Winder Work?

Not familiar with a watch winder? Think of it as a jewelry box with a motor that gently rotates your watch at intervals, simulating the wrist’s natural motion. This keeps your watch fully wound, accurate, and ready to wear.

Watch winders offer multiple rotation settings—clockwise, counterclockwise, or both—depending on your watch’s specific needs. If you own more than one watch, a multi-watch winder with alternating rotations is a convenient way to keep them all wound.

For Fortis watches, which usually require 650 to 800 turns per day (typically in a clockwise direction), most high-quality winders have the settings needed to keep your timepiece in perfect condition.

Fortis Winding Parameters

Here are the key terms to know when using your winder:

  • CW – Clockwise
  • CCW – Counterclockwise
  • Both – Combined mode (Clockwise + Counterclockwise)
  • – – Undefined
MODEL, DESCRIPTIONMOVEMENT / CALIBERWINDING DIRECTIONTURNS PER DAY (TPD)
Art Edition by Rolf SachsBoth650
Art Edition MatternBoth650
Art Edition Planet Gerd WinnerCW800
B-42 Big Day DateBoth650
B-42 Black Automatic: 647.28.71Automatic 2836-2Both650
B-42 Black Chronograph: 638.28.71LAutomatic 7750CW800
B-42 Black Ltd. Ed. – Black Black: 647.28.81Automatic 2836-2Both650
B-42 Black & Black 2012Both650
B-42 Black Ltd. Ed. – Black MARS 500: 647.28.13Automatic 2836-2Both650
B-42 Black Chronograph Titan CarbonCW800
B-42 Black Mars500 ChronoCW800
B-42 Chronograph GMT Chronometer C.O.S.C.: 651.10.12 MAutomatic 7750 w/GMT SuperstructureCW800
B-42 Diver Chronograph: 640.10Automatic 7750CW800
B-42 Diver Chronograph AlarmCW800
B-42 Diver Chronograph GMTAutomatic 7750CW800
B-42 Diver Day/Date: 648.10Automatic 2836-2Both650
B-42 Diver GMT 3 Time Zones: 650.10Automatic 2893-2Both650
B-42 Diver Ltd. Ed. – Chronograph Alarm COSC: 641.10.92F2001 AlarmCW800
B-42 Flieger Black Chronograph: 656.18.81Automatic 7750CW800
B-42 Flieger Black Day/Date: 655.18.81Automatic 2836-2Both650
B-42 Flieger Black Ltd. Ed. – Chronograph: 656.18.81Automatic 7750CW800
B-42 Flieger Black Ltd. Ed. – Chronograph Alarm COSC: 657.10.11F2001-5 AlarmCW800
B-42 Flieger Black Ltd. Ed. – Cockpit GMT: 672.18.11Automatic 2893-1Both650
B-42 Flieger Black Ltd. Ed. – Day/Date: 655.18.81Automatic 2836-2Both650
B-42 Flieger Chronograph: 656.10Automatic 7750CW800
B-42 Flieger Chronograph Alarm: 636.10F2001 AlarmCW800
B-42 Flieger Chrono Alarm ChronometerCW800
B-42 Flieger Chronograph GMTAutomatic 7750CW800
B-42 Flieger CockpitBoth650
B-42 Flieger Cockpit Limited EditionBoth650
B-42 Flieger Day/Date: 645.10, 655.10Automatic 2836-2Both650
B-42 Flieger Diver ChronographAutomatic 7750CW800
B-42 Marinemaster Chronograph: 638, 671.10Automatic 7750CW800
B-42 Marinemaster Chronograph Alarm: 639F2001-5 AlarmCW800
B-42 Marinemaster Day/Date: 647.11, 670.10Automatic 2836-2Both650
B-42 Marinemaster Ltd. Ed. – Chronograph Alarm: 637.10.41, 639.10.41F2001 AlarmCW800
B-42 Marinemaster Ltd. Ed. – Chronograph Alarm Chronometer COSC: 673.10.41F2001 AlarmCW800
B-42 Official Cosmonauts Chronograph: 630, 638.10Automatic 7750CW800
B-42 Official Cosmonauts Chronograph Alarm: 639.22F2001 AlarmCW800
B-42 Official Cosmonauts Chronograph Alarm TitaniumCW800
B-42 Official Cosmonauts Chronograph Diamond: 630Automatic 7750CW800
B-42 Official Cosmonauts Chronograph GMTAutomatic 7750CW800
B-42 Official Cosmonauts Chronograph Titanium: 659.27Automatic 7750CW800
B-42 Official Cosmonauts Day/Date: 610, 647.10Automatic 2836-2Both650
B-42 Official Cosmonauts Day/Date Mars MissionBoth650
B-42 Official Cosmonauts Day/Date Titanium: 658.27Automatic 2836-2Both650
B-42 Official Cosmonauts Edition Titan CarbonCW800
B-42 Official Cosmonauts GMTBoth650
B-42 Official Cosmonauts GMT 3 Time ZonesAutomatic 2893-2Both650
B-42 Official Cosmonauts Ltd. Ed. – Chronograph Alarm COSC: 660.27.11F2001 AlarmCW800
B-42 Official Cosmonauts Ltd. Ed. – Chronograph Gold Edition: 630.50.12Automatic 7750CW800
B-42 Official Cosmonauts Ltd. Ed. – Chronograph Titanium Edition: 638.27.91 MAutomatic 7750CW800
B-42 Official Cosmonauts Ltd. Ed. – Chronograph Titanium Edition (2004): 644.27.11Lemania 5100CCW800
B-42 Official Cosmonauts Ltd. Ed. – Day/Date Titanium MARS 500: 658.27.81Automatic 2836-2Both650
B-42 Official Cosmonauts Ltd. Ed. – MARS 500: 658.27.81Automatic 2836-2Both650
B-42 Pilot Professional Chronograph: 635.10Automatic 7750CW800
B-42 Pilot Professional Chronograph Alarm: 636.22F2001 AlarmCW800
B-42 Pilot Professional Chronograph Alarm TitaniumF2001 AlarmCW800
B-42 Pilot Professional Chronograph GMTAutomatic 7750CW800
B-42 Pilot Professional ChronographCW800
B-42 Pilot Professional Day/Date: 645.10Automatic 2836-2Both650
B-42 Stratoliner Chronograph: 665.10Automatic 7750CW800
B-42 Stratoliner Black & WhiteAutomatic 7750CW800
B-47 Big BlackBoth650
B-47 Calculator: 666.10Automatic 2893-2Both650
B-47 Calculator Ltd. Ed. – GMT 3 Time Zones: 666.10.31Automatic 2893-2Both650
B-47 Mysterious PlanetBoth650
B-47 Worldtimer GMTBoth650
Chronograph Diver (Lemania 5100)CCW800
Cosmonauts Chrono AlarmCW800
Cosmonauts Chronograph (Lemania 5100)CCW800
Cosmonauts Pilot (Lemania 5100)CCW800
Cosmonauts Space Edition (Lemania 5100)CCW800
Cargo Spacematic Ltd. Ed.: 623.22.81Automatic 7750CW800
Edition Winner Automatic: 595Automatic 2824-2Both650
Edition Winner Chronograph: 597Automatic 7750CW800
Edition Winner Platin Alarm Chronograph Automatic: 599F2001 AlarmCW800
F-43 FliegerCW800
F-43 Flieger Big Day Big DateBoth650
F-4F Phantoms PhoreverCW800
Flieger 24 H: 621.10Automatic 2893-2Both650
Flieger Automatic: 595.10, 620.10Automatic 2824-2Both650
Flieger Automatic 24H: 596.10, 621.10Automatic 2893-2Both650
Flieger Big Date: 615.10Automatic 2836-2Both650
Flieger Black Automatic: 647Automatic 2836-2Both650
Flieger Black Chronograph: 638Automatic 7750CW800
Flieger Black Ltd. Ed. – 24h: 596.18Automatic 2893-2Both650
Flieger Chronograph: 597.10, 597.11, 622.10Automatic 7750CW800
Flieger Chronograph Automatic Alarm: 599.10F2001 AlarmCW800
Flieger Chronograph F-43 Alarm GMTCW800
Flieger CockpitAutomatic 2824-2Both650
Flieger GMT: 596.10, 621.10Automatic 2893-2Both650
Flieger GMT Chronometer: 598.10Automatic 7750CW800
Flieger Ltd. Ed. – NATO Tigers: 595.10.4Automatic 2824-2Both650
Flieger Ltd. Ed. – Chronograph AWACS: 597.11.11Automatic 7750CW800
Flieger Ltd. Ed. – Chronograph Gold Edition 18KTI: 597.50.12Automatic 7750CW800
Flieger Ltd. Ed. – Chronograph US Navy SWTI: 597.11Automatic 7750CW800
Flieger Ltd. Ed. – Steel: 597.11.12 LC 05Automatic 7750CW800
Flieger Ltd. Ed. – Steel / 18KT Gold: 59.60.12.LC 01Automatic 7750CW800
Jumping HourBoth650
Limited Art Edition – IQ – ROLF SACHS: 596.18.61LAutomatic 2824-2Both650
Limited Art Edition – MALTERN: 623.22.15CW800
Limited Art Edition – PLANET – GERD WINNER: 638.28.17 KAutomatic 7750CW800
Limited Art Edition – SPACE ART – FRANK BURMANNLemania 5100CCW800
Limited Art Edition – Spacematic PIT STOP – Jean TinguelyAutomatic 2824-2Both650
Official Cosmonauts Chronograph: 630.10Automatic 7750CW800
Maerinemaster VintageBoth650
Official Cosmonauts Chronograph Diamond: 630.14Automatic 7750CW800
Official Cosmonauts Day/Date: 610.10, 610.22Automatic 2836-2Both650
Official Cosmonauts GMT: 611.22Automatic 2893-2Both650
Official Cosmonauts Chronograph Alarm: 607.22F2001 AlarmCW800
Official Cosmonauts Chronograph Cosmonaut, Gold: 630.22Automatic 7750CW800
Official Cosmonauts Chronograph Cosmonaut: 602.22, 602.60Lemania 5100CCW800
Official Cosmonauts Chronograph Diver: 631.22Automatic 7750CW800
Official Cosmonauts Chronograph Diver: 605.22Lemania 5100CCW800
Official Cosmonauts Chronograph GMT Chronometer: 603.22, 603.60Automatic 7750CW800
Official Cosmonauts Chronograph Pilot: 606.22Lemania 5100CCW800
Official Cosmonauts Chronograph Pilot GMT: 632.22Automatic 7750CW800
Official Cosmonauts Ltd. Ed. – Chronograph Alarm Platinum Edition: 607.70.11, 607.70.12F2001 AlarmCW800
Official Cosmonauts Ltd. Ed. – Chronograph MIR: 602.22.11Lemania 5100CCW800
Official Cosmonauts Ltd. Ed. – Chronograph Space Edition ISS: 602.22, 602.60.11Lemania 5100CCW800
Official Cosmonauts Ltd. Ed. – Steel / 18KT Gold: 630.60.12
Pilot 42BBoth650
Pilot Professional Big Date: 615.22Automatic 2836-2Both650
Pilot Professional Big Date Black: 615.18Automatic 2836-2Both650
Pilot Professional Chronograph Alarm: 599.22F2001 AlarmCW800
Pilot Professional Chronograph Alarm Black: 599.18F2001 AlarmCW800
Pilot Professional Chronograph Auto: 597.22Automatic 7750CW800
Pilot Professional Chronograph Black: 597.18Automatic 7750CW800
Pilot Professional Day/Date: 595.22Automatic 2836-2Both650
Pilot Professional Day/Date Black: 595.18Automatic 2836-2Both650
Pilot Professional GMT: 596.22Automatic 2893-2Both650
Pilot Professional GMT Black: 596.18Automatic 2893-2Both650
Pilot Professional Ltd. Ed. – Chronograph Alarm Platinum: 599.70.11F2001 AlarmCW800
Pilot Professional Ltd. Ed. – DUCATI: 597.22.141.21Automatic 2836-2Both650
Pit Stop Jean TinguelyBoth650
Spaceleader Ltd. Ed. – By VOLKSWAGEN DESIGN: 661.20.31 KAutomatic 7750CW800
Spacematic Chronograph: 625.22Automatic 7750CW800
Spacematic Chronograph Alarm: 627.22F2001 AlarmCW800
Spacematic Day-Date: 623.22Automatic 2836-2Both650
Spacematic GMT: 624.22Automatic 2893-2Both650
Spacematic Ltd. Ed. – Swiss II Fighter Squadron: 625.22Automatic 7750CW800
Spacematic Limited Edition 2012Both650
Spacematic Yuri Gagarin GMTBoth650
Spacemleader Chrono by VolksWagenCW800
Square Automatic: 653.10Automatic 2836-2Both650
Square Chronograph: 667.10Automatic 7750CW800
Square Ltd. Ed. – Swiss International Airlines UTC: 652.10.148Automatic 2893Both650
Watch Winder Setting For Fortis

How to Properly Use and Set the Fortis Watch Winder?

If for some reason you don’t have access to your watch’s user guide, here are some more detailed tips to help you set up the Fortis watch with your automatic watch winder:

Step 1: Manual Wind First

Since your winder will not wind a watch that is completely stopped, start by turning the crown 20 to 30 times to manually wind the Fortis.

Step 2: Secure the Watch in the Winder

Carefully place the watch into the winder, making sure it is fully seated in the holder. Then adjust the TPD to the lowest setting and select bidirectional rotation mode.

Step 3: Turn it on & Adjust Settings

Turn on the winder. During the next 48 hours or so, periodically check that the watch is still keeping accurate time. 

Generally speaking, an automatic watch has about 40 hours of reserve time since it is wound. Here’s what to do depending on your situation:

  • If Time is Accurate After 2 Days: You’ve found the right setting! Your watch is good to go, and there’s no need to adjust further.
  • If Time is Incorrect: Increase the Turns Per Day (TPD) setting to the next level, reset the winder, and let it run for another 48 hours.
  • Still Wrong? Try Clockwise Only: If the watch is still losing or gaining time, set the winder to rotate clockwise only. After another two days, check again.
  • Last resort – Counterclockwise Only: If the time is still off, switch the setting to counterclockwise only and monitor again for two days.

Does Fortis Recommend using a Watch Winder?

Fortis has not explicitly stated whether it recommends the use of watch winders.

Although not endorsed, many professional watchmakers agree that the use of a reliable watch winder from a reputable watch winder brand (e.g. Wolf, Mozsly, Barrington) can effectively wind a Fortis automatically. The correct TPD setting is essential to avoid over-winding the movement.

So, to summarize – regular wear is the best option, but a quality watch winder can provide a convenient solution for in-between wearing.

What is the Best Watch Winder for Fortis?

If you are considering a watch winder, it is vital that you choose a high quality that meets the specific requirements of your Fortis watch. 

Here are two recommended options:

MOZSLY® Single Watch Winder – Black Leather

Louis Vuitton Watch Winder

Material: Wooden Box, PU Leather, Acrylic Board

Dimensions: 4.4 x 6 x 4.4 inches

Features: 4 modes with TPD settings from 650 to 1500, multiple winding directions, upgraded Japanese Mabuchi Motor, anti-magnetization design, dual power type, 3-year warranty, 100% handmade

MOZSLY® Double Watch Winder -Orange Leather

Louis Vuitton double watch winder box

Material: Wooden Box, PU Leather, Acrylic Board

Size: 8.8 x 5.9 x 4.7 inches

Features: Supports two watches simultaneously, quiet motor, adjustable settings, upgraded Mabuchi motor, and 3-year warranty

MOZSLY watch winders use high-quality upgraded Japanese Mabuchi motors, a well-known brand that manufactures precision motors. These motors keep the noise below 10 db so it will give you a very quiet experience even if you put it in your bedroom. The internal motor is closed and can be separated from the watch so that the Fortis will not be magnetized and affect the running time.

Mozsly watch winders come with a 36-month warranty and friendly customer support, making it easy to buy with confidence!

In Conclusion

Choosing a Mozsly watch winder is a smart choice for Fortis owners who want to preserve the accuracy and longevity of their timepieces.

Just make sure to select the right TPD and rotation settings, following Fortis’s guidelines for best results. With a Mozsly winder, you’ll enjoy the elegance of your Fortis, always ticking perfectly, year after year.

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