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Fortis · Novonaut

Fortis Novonaut N-42

Reference F2040008 · Chronograph · 42 mm

14Ø 42 mmLug-to-lug 51 mm
Illustration drawn from the specifications: case to scale, colours and style approximate. Not a photo. Photos on the official page

Specifications

Reference
F2040008
Family
Novonaut
Category
Chronograph
Status
Current
Case material
Stainless steel, Titanium
Case diameter
42 mm
Case thickness
15 mm Official
Lug-to-lug
51 mm Official
Lug width
—
Water resistance
200 m
Bezel
—
Calibre
Werk 17 Official
Power reserve
60 h

Official product page · retrieved October 25, 2026

Does it fit your wrist?

Enter your wrist circumference. The watch appears to scale on the flat top of the wrist.

14Lug-to-lug 51 mmFlat top of the wrist 54.1 mm
Top view on a wrist, to scale
Flat top of the wrist 54.1 mmLug-to-lug 51 mmCase diameter 42 mm
Side view, across the wrist

Comfortable

Lug-to-lug 51 mm on a flat top of 54.1 mm: 94 % of the width.

Lug-to-lug is 75 to 95% of the flat top, the usual comfortable range.

Measurements and sources

Brands rarely publish thickness, lug width and lug-to-lug together. Each observation below is kept separate, with who gave it.

Case thickness

Value Type Source Date
15 mm Official Fortis October 25, 2026

Lug-to-lug

Value Type Source Date
51 mm Official Fortis October 25, 2026

Lug width

Lug width is the gap between the lugs, where the strap fits. It is not lug-to-lug.

No source gave this figure yet.

Calibre source

Official Fortis · retrieved October 25, 2026

Other versions in the same case

These references share this case and differ by metal, dial, bracelet or bezel. The figures on this page apply to all of them, except where a reference shows its own thickness.

  • F2040012 · Cobalt Blue / Block Bracelet
  • F2040017 · Titanium
  • F2040016 · Titanium · AMADEE-24 / Block Bracelet

Other Novonaut references

Watch Ø Thickness Lug-to-lug Calibre
Novonaut N-42 TR F2040021 42 mm 15 mm 51 mm Werk 17 TR

Other Fortis models

Watch Ø Thickness Lug-to-lug Calibre
Flieger F-43 Bicompax F4240004 43 mm 15.5 mm 54 mm UW-51
Stratoliner S-41 F2340006 41 mm 14.5 mm 50.5 mm Werk 17
Flieger F-41 F4220008 41 mm 12.5 mm 52 mm UW-30
Flieger F-41 Werk 7 F4220030 41 mm 12.5 mm 52 mm Werk 7
Flieger F-39 F4220005 39 mm 12.5 mm 50 mm UW-30
Flieger F-39 Werk 7 F4220028 39 mm 12.5 mm 50 mm Werk 7
Show 4 more
Watch Ø Thickness Lug-to-lug Calibre
Flieger F-43 Triple-GMT F4260000 43 mm 15.5 mm 54 mm Werk 13
Marinemaster M-40 F8120024 40 mm 12 mm 43 mm UW-30
Marinemaster M-44 F8120013 44 mm 14 mm 48 mm Werk 11
Vagabond V-40 F6660000 40 mm 13.9 mm 46.5 mm Werk 13

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