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Fortis’s current Halo model is the Novonaut N-42 TR Halo Green on Hybrid Strap (reference F2040023). Its unusual construction starts with a Lumicast X1 base dial made from Super-LumiNova X1. Rather than limiting lume to applied markers, Fortis says the dial itself becomes increasingly prominent in darkness, with contrasting green chronograph counters and a ceramic bezel that also carries Super-LumiNova X1.
That is a manufacturer description, not an independently measured brightness ranking. No published photometric test or verified glow-duration figure accompanies the current listing.
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What does it mean for a watch dial to be a light source?
Fortis describes the design in unusually direct terms: “A functional design that turns the dial itself into a high-performance light source.” The quoted wording appears on the official product page and is a construction and marketing claim from Fortis, not a statement attributed to a named designer or an outside laboratory.
The Halo Green’s base dial is specified as Lumicast X1 made from Super-LumiNova X1. Green chronograph subdials provide contrast against that luminous foundation, while the bidirectional ceramic bezel includes Super-LumiNova X1 as well. In practical terms, the watch uses a much larger luminous surface than a conventional layout in which lume is concentrated mainly in hands and hour indices. Fortis says the dial becomes more prominent in darkness; the available specification does not establish how it compares with other watches under controlled measurement.
#1 Best Overall
- Stainless steel case 40mm diameter x 14.1mm thick; Exhibition case back; Black dial; Luminous hands.Band Length: 205mm
- NH35A Japanese Automatic movement, 24 jewel; Assembled in Malaysia; Watch weight 155 grams
- Includes gift box, instructions and 3 year limited manufacturer warranty; Invicta Customer Service can be reached at 1-800-327-7682 for questions (re: Additional links, band replacement, band adjustment, warranty questions, etc.)
The exact configuration is documented on Fortis’s Novonaut N-42 TR product page.
What is new about the Fortis Novonaut N-42 Halo?
A luminous-dial architecture
The defining change is the luminous base rather than a new decorative treatment applied over a conventional dial. The Halo Green pairs that base with green chronograph counters, preserving legibility between the main display and elapsed-time indications while keeping the luminous material visually central.
Rank #2
- Seiko 5 Automatic Black Arabic Dial Men's Watch SNKP21J1
The Werk 17 TR chronograph movement
Inside is Fortis’s automatic Werk 17 TR. The listed functions are a column-wheel chronograph and day-date display, with a stated 70-hour power reserve. Fortis says the TR version adds variable-inertia regulation and a two-point balance fixation. Those are manufacturer specifications. Fortis also presents the calibre as an evolution of a movement associated, in its account, with earlier stratospheric-flight and rocket-mission testing; the current page does not provide test protocols, dates, reports or an independent certifier for that history.
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Case, crystal and bezel
The case is made from recycled stainless steel and measures 42 mm across. Fortis lists 51 mm lug-to-lug, 15 mm overall height and 200 m water resistance. A double-sided anti-reflective sapphire crystal protects the dial, and the bidirectional ceramic bezel carries the additional luminous material described above.
Rank #3
- [Luxurious Mechanical Watch] High quality hollow mechanical watch appearance retro gorgeous, exquisite carving and design of the golden appearance of the European nobility more highlight your noble identity extraordinary taste, to bring you a pleasant luxury experience
- [Mechanical Movement] This watch has manual self-winding. Please consider that mechanical watches that require manual winding can only keep time for a short time after winding. To prevent running or inaccurate time, it is advised that you verify the time periodically and wind up the chain 15–20 times.
- [Waterproof] Water resistant to 50m (165ft) -suitable for short periods of recreational swimming and showering, but not diving or snorkeling
- [Ideal as a Gift] This beautiful retro-style watch can be worn on any occasion or given as a gift to your father, brother, partner, or boyfriend. At weddings and any holiday gatherings, it can be a really appreciated and elegant gift.
- [Professional After-Sale Service] Please contact us if you need any additional details about our watches. We will be happy to answer and help you anytime.
Novonaut N-42 TR Halo specifications
| Specification | Fortis listing |
|---|---|
| Exact model | Novonaut N-42 TR Halo Green on Hybrid Strap |
| Reference | F2040023 |
| Movement | Automatic Werk 17 TR |
| Functions | Column-wheel chronograph; day-date |
| Power reserve | 70 hours |
| Case material | Recycled stainless steel |
| Case diameter | 42 mm |
| Lug-to-lug | 51 mm |
| Case height | 15 mm |
| Water resistance | 200 m |
| Crystal | Double-sided anti-reflective sapphire |
| Bezel | Bidirectional ceramic with Super-LumiNova X1 |
| Strap | Hybrid strap with screw-pin mounting specified by the listing |
| Displayed price | 5,450 CHF on the product page accessed October 13, 2026 |
How bright is the Fortis Novonaut Halo in the dark?
Fortis’s design should create a visibly larger luminous area than a dial that uses only small luminous markers, and the company specifically says the dial becomes more prominent in darkness. However, the official pages reviewed do not publish a brightness measurement, a candela value, a controlled comparison or a glow-duration test. It is therefore not possible to call the Halo the brightest watch, or to assign it a verified runtime, from the available evidence.
Brightness will also depend on how much light charges the Super-LumiNova X1 material, viewing conditions and the observer’s adaptation to darkness. Those variables make a controlled test important if a buyer needs performance data rather than the manufacturer’s construction description.
Rank #4
- [Luxurious Mechanical Watch] High quality hollow mechanical watch appearance retro gorgeous, exquisite carving and design of the golden appearance of the European nobility more highlight your noble identity extraordinary taste, to bring you a pleasant luxury experience
- [Mechanical Movement] There's no need to worry if the battery is dead because this watch has manual self-winding. Please consider that mechanical watches that require manual winding can only keep time for a short time after winding. To prevent running or inaccurate time, it is advised that you verify the time periodically and wind up the chain 15–20 times.
- [Waterproof] Water resistant to 30m (98FT) -suitable for daily water resistance, withstands splashes and light rain. Not for swimming, showering or diving
- [Ideal as a Gift] This beautiful retro-style watch can be worn on any occasion or given as a gift to your father, brother, partner, or boyfriend. At weddings and any holiday gatherings, it can be a really appreciated and elegant gift.
- [Professional After-Sale Service] Please contact us if you need any additional details about our watches. We will be happy to answer and help you anytime.
How much does the Fortis Novonaut Halo cost?
The live product page displays 5,450 CHF and labels the model as just released, with an estimated delivery time of one to two days. Price, taxes, inventory and delivery depend on region and can change; verify the current total and availability at the official listing before ordering.
How it fits into the Novonaut N-42 family
Fortis’s Novonaut collection page shows multiple N-42 variants. They should not be treated as interchangeable. Earlier or alternative models can differ in movement (including Werk 17 versus Werk 17 TR), dial and subdial colors, luminous elements, case or strap materials, power reserve and price.
Best Value
- Sleek & Functional Design: This sophisticated titanium men's watch showcases a distinctive dial layout with dedicated markers for minutes, 12-hour, and 24-hour time displays. Arabic numerals ensure optimal legibility, while the bold red-tipped second hand injects a subtle yet striking accent. The inclusion of a practical date window further elevates its everyday versatility.
- Lightweight & Durable Titanium Construction: Crafted from premium titanium, the case combines brushed and polished finishes for a refined yet rugged aesthetic. Renowned for its featherlight weight and exceptional resilience, titanium offers superior corrosion resistance. The screw-down case back enhances durability.
- Clear AR Coated Sapphire Lens & Super Luminous: Fitted with an anti-reflective sapphire crystal, this automatic watch delivers unmatched clarity and scratch resistance. The watch hands coated with super-luminous material for easy readability even in low-light conditions.
- Precision Japanese Movement & 10ATM Water-Resistant: Powered by a precise Miyota 8215 automatic movement, this timepiece ensures accurate timekeeping and long-term reliability. With a 10ATM water resistance rating, it’s built to accompany you on outdoor adventures without compromise.
- Quick-Release Nylon Strap for Comfort: The lightweight nylon strap prioritizes comfort for all-day wear, while the quick-release mechanism allows for effortless strap changes to suit any occasion. Low-maintenance and durable, it’s designed for convenience.
When comparing versions, check the exact reference and live product page for five items: the dial’s base and counter colors; the movement and stated reserve; case and strap configuration; bezel and luminous components; and current regional price and stock. The Halo Green’s 42 mm dimensions, 200 m rating and 70-hour reserve belong to reference F2040023, not automatically to every Novonaut N-42.
Who is the Halo Green for?
- Choose it for the concept: the broad luminous dial is the reason to buy this specific Novonaut, especially if darkness legibility is part of the watch’s visual appeal.
- Choose it for the tool-watch specification: the 200 m rating, sapphire crystal, ceramic bezel and automatic chronograph make it suited to demanding everyday wear on paper.
- Check wearability first: 51 mm lug-to-lug and 15 mm height can feel substantial despite the moderate 42 mm diameter.
- Confirm the configuration: make sure the page identifies the TR movement, Halo Green dial and hybrid strap rather than another N-42 reference.
Frequently Asked Questions
Is the Fortis Novonaut N-42 Halo independently tested for brightness?
No independent photometric result or verified glow-duration figure is published on the official pages reviewed. Fortis describes the luminous-dial construction and says the dial becomes more prominent in darkness.
What is the exact reference for the Halo Green?
The current model is the Novonaut N-42 TR Halo Green on Hybrid Strap, reference F2040023.
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No. The 70-hour Werk 17 TR specification applies to reference F2040023; other N-42 variants may use different movements, layouts, materials or reserves.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
