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The Fortis Flieger F-43 Triple-GMT, reference F4260000, is a 43 mm titanium automatic watch with a GMT function, a bidirectional 12-hour bezel, a 70-hour stated power reserve and 200 m water resistance. Fortis lists this Original configuration on a titanium Block Bracelet. The specifications below are the manufacturer’s; they are not independent test results.
What are the Fortis F-43 Triple-GMT specifications?
Fortis’s official listing describes the F4260000 Original as follows:
| Specification | Fortis listing |
|---|---|
| Case | Titanium; 43 mm diameter, 54 mm lug-to-lug and 15.5 mm thick |
| Watch-head weight | 88 g |
| Water resistance | 200 m / 600 ft / 20 atm |
| Bezel | Bidirectional 12-hour bezel with half-hour increments |
| Crown and seals | Screw-down crown, triple-gasket system and performance FKM gaskets |
| Crystal | Sapphire with anti-reflective coating on both sides |
| Movement | Automatic manufacture Werk 13 calibre, co-developed with Kenissi; GMT and date functions; stated 70-hour power reserve; Fortis identifies it as a certified chronometer |
| Bracelet | Titanium Block Bracelet with titanium slide clasp, integrated microadjustment and screw-pin attachment system |
| Included items | Alpha Box, documentation, five-year warranty, chronometer certificate and user manual; Fortis also lists a reversible screwdriver for bracelet/strap changes and a mirror tool for bracelet-length adjustment on its webshop |
These are specifications published by Fortis, not measurements independently verified for this article. The brand describes the Werk 13 as “delivering 70 hours of precision”; that is promotional wording, not a separate accuracy test. See Fortis’s F-43 Triple-GMT product listing.
How does the GMT display work?
The watch pairs a GMT function with a bidirectional 12-hour bezel marked in half-hour increments. The bezel gives the wearer another way to reference a time zone, but Fortis’s product specifications do not establish the exact hand-setting behavior. In particular, they do not support describing this as a specific “true GMT” movement with a jumping local-hour hand.
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- Men's luxury timepieces with technical advancements and a sporty style
- 3 Hand, Day / Date
- Silver-Tone Stainless Steel, Arabic Markers
- Luminous Hands and Markers, Mineral Crystal
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What are the dial and bracelet details?
Fortis specifies a vertically brushed black dial with applied circular-brushed Brixtrack, white Brix and GMT numerals in Super-LumiNova X1, and an orange Synchroline. The maker lists a blue afterglow. These are design and material claims from the manufacturer, not independent lume testing.
The listed F4260000 configuration comes on a titanium Block Bracelet. Fortis specifies integrated microadjustment in its slide clasp and a screw-pin system. A reversible screwdriver is included according to the webshop listing, so the maker does not present it as a separate required purchase. The sapphire crystal has anti-reflective coating on both sides.
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Is the F4260000 the right configuration to buy?
Check the reference and configuration before ordering: this guide concerns the F4260000 Original with titanium Block Bracelet, not another Flieger colourway or edition. The dimensions are worth considering together: the case is 43 mm across, 54 mm lug-to-lug and 15.5 mm thick. Those figures describe a substantial watch on paper; they do not establish how it will fit a particular wrist.
Fortis displayed a price of 4,550 CHF and “Available online” on the retrieved product listing. Price, stock and regional purchase terms can change, so confirm the current price, availability, delivery, taxes and duties on the listing for your location before buying. Fortis’s Flieger collection page shows other models and variants; their prices should not be treated as prices for this exact reference.
Rank #3
- Men's luxury timepieces with technical advancements and a sporty style
- 3 Hand, Date
- Silver-Tone Stainless Steel
- Spherical Mineral Crystal
- 100 Meters Water Resistant and 5 Year Limited Warranty
For a direct purchase, check the Fortis official shop listing for the Flieger F-43 Triple-GMT. The manufacturer listing confirms the watch is offered by Fortis; it does not establish current inventory at third-party retailers.
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- Caring for Your Timepiece: Your MVMT automatic watch has been crafted with meticulous attention to quality, function, and detail. We recommend a maintenance interval of every 3 to 5 years to ensure optimal performance. To keep your watch running smoothly, wear it regularly or use a watch winder when not in use. Please do not attempt to open the watch yourself.
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.




