Fortis
Most Fortis watches use a 20 mm lug width: 45 of the 67 Fortis references with a listed width in our database (67%).
Lug widths at Fortis
Fortis collections
Lug width
- FliegerScrewed bars
- MarinemasterScrewed bars
- StratolinerScrewed bars
- Official Cosmonauts20 or 22 mm
- Novonaut22 mm
- Marinemaster Vintage20 mm
- B-42 Marinemaster20 mm
- Stratoliner S-4120 or 21 mm
- Flieger Professional20 mm
- Marinemaster 2022Integrated bracelet
- Marinemaster M-4421 mm
- B-47 Calculator22 mm
- B-47 Day-Date22 mm
- B-47 Worldtimer22 mm
- Flieger Classic20 mm
- Flieger F-3921 mm
- Flieger F-4121 mm
- Marinemaster 197020 mm
- Marinemaster 2021Integrated bracelet
- Marinemaster Quartz20 mm
- Stratoliner Limited20 mm
- Stratoliner Supernova20 mm
- VagabondScrewed bars
- B-42 Black20 mm
- B-42 Chronograph20 mm
- B-42 Cosmonaut20 mm
- Dornier GMT20 mm
- Flieger Automatic20 mm
- Flieger F-39 Werk 721 mm
- Flieger F-41 Werk 721 mm
- Flieger F-43 Bicompax21 mm
- Flieger F-43 Triple-GMT21 mm
- Marinemaster 197220 mm
- Marinemaster M-4021 mm
- Novonaut N-4221 mm
- Space AgeIntegrated bracelet
- Spacematic20 mm
- Spacematic Eco20 mm
- Spacematic White20 mm
- Vagabond V-4021 mm
No line or reference matches.
More Fortis references, by line
Lines without a guide page yet: every reference we list for them, with its strap size.
B-42 Black
- B-42 Black Mars 638.28.1320 mm
B-42 Chronograph
- B-42 Chronograph Black Steel 638.10.1120 mm
B-42 Cosmonaut
- B-42 Cosmonaut GMT Black 649.10.1120 mm
B-47 Calculator
- B-47 Calculator Black B-47-670.10.1122 mm
- B-47 Calculator Blue B-47-670.10.4122 mm
B-47 Day-Date
- B-47 Day-Date Titan Blue B47-TI-DD-BL-201022 mm
- B-47 Day-Date Titan Grey B47-TI-DD-GR-201022 mm
B-47 Worldtimer
- B-47 Worldtimer Black B-47-WT-2008-BK22 mm
- B-47 Worldtimer Blue B-47-WT-2008-BL22 mm
Dornier GMT
- Dornier GMT Black 655.18.95 LP20 mm
Flieger Automatic
- Flieger Automatic 595.x Black 595.10.4620 mm
Flieger Classic
- Flieger Classic 595 Black 595.10.11-199820 mm
- Flieger Classic 595 Blue 595.10.41-199920 mm
Flieger F-39
- Flieger F-39 Original on Aviator Strap F422000621 mm
- Flieger F-39 Original on Block Bracelet F422000521 mm
Flieger F-39 Werk 7
- Flieger F-39 Werk 7 Mission Black F422002821 mm
Flieger F-41
- Flieger F-41 Liberty Blue F422002521 mm
- Flieger F-41 Original F422000821 mm
Flieger F-41 Werk 7
- Flieger F-41 Werk 7 Mission Black F422003021 mm
Flieger F-43 Bicompax
- Flieger F-43 Bicompax Original F424000421 mm
Flieger F-43 Triple-GMT
- Flieger F-43 Triple-GMT Original F426000021 mm
Marinemaster 1970
- Marinemaster 1970 Orange MM-1970-OR20 mm
- Marinemaster 1970 Silver MM-1970-SL20 mm
Marinemaster 1972
- Marinemaster 1972 Blue MM-1972-BL20 mm
Marinemaster 2021
- Marinemaster 2021 Desert M-40-DESERT-2021Integrated bracelet
- Marinemaster 2021 Midnight M-40-MIDNIGHT-2021Integrated bracelet
Marinemaster M-40
- Marinemaster M-40 Amber Orange F812002421 mm
Marinemaster Quartz
- Marinemaster Quartz 200m Black MMQ-1998-BLK20 mm
- Marinemaster Quartz 200m Blue MMQ-1998-BLU20 mm
Novonaut N-42
- Novonaut N-42 Titanium Legacy F204001721 mm
Space Age
- Space Age LCD Sports DGT-1983-SPTIntegrated bracelet
Spacematic
- Spacematic Pilot Professional PVD 623.18.7120 mm
Spacematic Eco
- Spacematic Eco Black 626.22.15920 mm
Spacematic White
- Spacematic White SPAC-623.10.4120 mm
Stratoliner Limited
- Stratoliner Limited Aurora S41-AURORA-202320 mm
- Stratoliner Limited Eclipse S41-ECLIPSE-202320 mm
Stratoliner Supernova
- Stratoliner Supernova Grey S-41-STR-SNGR-202320 mm
- Stratoliner Supernova White S-41-STR-SN-202320 mm
Vagabond
- Vagabond V-40 Blue Dusk F6660002Screwed bars
- Vagabond V-40 Urban Shadow F6660004Screwed bars
Vagabond V-40
- Vagabond V-40 Stormy Gray F666000021 mm
FAQ
What lug width do Fortis watches use?
20 mm is the most common (67% of Fortis references with a listed width), followed by 21 mm and 22 mm.
Do all Fortis watches take the same strap size?
No. Fortis uses 3 different lug widths across its collections, so check your exact model or reference.
Help
What is lug width?
The gap between the two lugs that hold the strap, in millimetres. A new strap must match it exactly: 20 mm lugs take a 20 mm strap.
Measure it in 30 seconds
- Take the strap off, or look at the back of it: many straps print their width.
- Measure the inside gap between the lugs with a caliper or a millimetre ruler.
- Round to the nearest whole millimetre. Most watches use 18, 20 or 22 mm.
Strap, quick release or system?
Most watches use spring bars, so any strap of the right width fits. Many smartwatches use their own band system instead, such as Apple Watch bands or Garmin QuickFit.