Fortis Novonaut N-42 Titanium Legacy
The Novonaut, launched in 2023, succeeds the B-42 Cosmonauts Chronograph, which cosmonauts wore from 1994 to 2003, and the Titanium Legacy is the regular-production follow-up to the 100-piece AMADEE-24 Mars Analog Mission Timer, the first titanium Novonaut. It pairs the steel Legacy's matte black dial and bezel with gold-plated chronograph hands. The layout is the classic 7750 arrangement, with sub-dials at 6, 9 and 12 and day and date at 3, but the movement is Fortis's Werk 17, a column-wheel automatic chronograph made with La Joux-Perret and flown to 30 km on a balloon to test it in near-space conditions. It runs at 28,800 vibrations an hour for 60 hours, behind a closed caseback engraved with a rocket. The case is 42 mm, 15 mm thick and 51 mm lug to lug, rated to 200 m, on a three-row titanium Block bracelet with micro-adjustment, and the whole watch weighs 161 g.
Written 28 September 2026 from Fratello and HiConsumption.
- Reference
- F2040017
- Type
- Chronograph
- Case diameter
- 42.0 mm
- Thickness
- 15 mm
- Lug-to-lug
- 51 mm
- Origin
- Switzerland
- Movement
- Automatic chronograph (column wheel)
- Caliber
- Fortis WERK 17 (La Joux-Perret base)
- Power reserve
- 60 h
- Complications
- Chronograph, Day-date
- Colour
- Grey
- Surface treatment
- None
- Finish technology
- Natural finish
- Caseback
- Titanium
- Nickel-free
- Unconfirmed (clasp or buckle material not confirmed)
- Bracelet / strap
- Titanium Block bracelet
- Matching bracelet
- Standard
- Micro-adjust clasp
- Yes
- Crystal
- Sapphire
- Display back
- No
- Dial
- Black; matte black ceramic bezel insert
- Dial colours
- Black
- Lume
- Super-LumiNova
- Availability
- Offered
- Status
- Current (sold out on the maker store)
- Not published
- Hardness, Construction
Browse all watch comparisons →
Similar watches
Alternatives to the Fortis Novonaut N-42 Titanium Legacy
More watches from Fortis
Frequently asked questions
What grade of titanium is the Fortis Novonaut N-42 Titanium Legacy?
Titanium, with no grade stated. The caseback is titanium too. The record is at medium confidence, so check the maker's page before relying on it.
What size is the Fortis Novonaut N-42 Titanium Legacy?
The case is 42 mm across, 15 mm thick and 51 mm from lug to lug. It is water resistant to 200 m.
How much does the Fortis Novonaut N-42 Titanium Legacy weigh?
About 161 g on its bracelet.
How much does the Fortis Novonaut N-42 Titanium Legacy cost, and is it available?
It is in production, at a list price of $6,968.
All Fortis watches · Chronograph watches · All 1,960 watches
Learn: Titanium grades · Surface treatments · Why titanium scratches · How to read a spec
How we verify & grade · Image & Trademark Policy · Terms & Conditions · Privacy Policy



