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Fortis Novonaut N-42 Titanium Legacy

F2040017

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.

All Fortis watchesChronograph watchesLightest, rankedOn a titanium braceletMicro-adjust bracelet
Price
≈$6,968 (CHF 5,800)
Material
Titanium
Grade / type
Titanium (grade not stated)
Weight
161 g (with bracelet)
Water resistance
200 m
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
Medium confidence Verified Oct 2026 Source: Fratello / HiConsumption Maker ↗
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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.

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