Fortis · Novonaut

Strap for Novonaut N-42 Legacy Edition / Block Bracelet

Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width22 mm
Case diameter42 mm
ReferenceF2040008
FamilyNovonaut
MovementFortis caliber Werk 17 Hours, Minutes, Small Seconds | Date, Day | Chronograph, Column wheel
CaseCeramic, Stainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the Novonaut F2040008

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Novonaut F2040008, seen from the bench

The Fortis Novonaut reference F2040008 is equipped with the automatic caliber Werk 17, featuring chronograph functions with column-wheel, hours, minutes, small seconds, date and day of the week. The watch features 22mm lugs for the strap. The movement integrates the chronograph complication with a column-wheel system for precise button actuation.

Frequently asked questions

What is the lug width of the Fortis Novonaut F2040008?

The lug width of the Fortis Novonaut F2040008 is 22 millimetres. This width is standard for mid-to-large sports chronographs and accommodates a wide range of aftermarket straps in leather, rubber and fabric.

Which strap is best suited to the Fortis Novonaut F2040008?

We recommend an alligator or Tuscan calf leather strap with vegetable tanning for the Novonaut, which enhances the elegance of the ceramic case. For a sportier aesthetic, a nylon technical NATO strap or a rubber strap are excellent choices for outdoor and professional contexts.

How do I change the strap on the Fortis Novonaut F2040008?

To change the strap, remove the watch from your wrist and use a spring bar removal tool. Gently insert the bifurcated tip into the slots on either side of the lugs, lift the pin and slide out the old strap. Position the new strap ensuring both sides are secured correctly. The operation takes just a few minutes and requires no watchmaking expertise.

Is there an aftermarket strap compatible with the Fortis Novonaut F2040008?

Yes, all straps with a 22mm lug width are compatible with the Novonaut F2040008. Milanostraps offers a comprehensive selection of leather, alligator, calf, NATO and rubber models, all available with rapid delivery and fully customisable to your aesthetic preferences.

How long does a leather strap last on the Fortis Novonaut F2040008?

A high-quality leather strap, especially one made with vegetable tanning, has an average lifespan of 3-5 years with moderate daily use. Longevity depends on exposure to moisture, sweat and maintenance. Treatment with leather-specific creams and proper drying after prolonged exposure significantly extends the strap's lifespan.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

Request an appointment →

Casati Milano · Via XX Settembre 15, Milan · by appointment only