All About Shopping
About Us
Prague Shop
Contact
The Swiss Fortis Marinemaster M-40 Gravity Black F8120026 watch features a distinctive diving design in the Fortis style. It is characterised by excellent legibility, robustness and durability. This watch is well suited to both underwater use and everyday wear.
The Fortis Marinemaster M-40 Gravity Black F8120026 watch has a case made of recycled stainless steel, complemented by a flexible rubber strap. Inside the case is the reliable Swiss Fortis UW-30 Performance mechanical movement, based on the Sellita SW200-1, with automatic winding. It differs from the standard UW-30 movement in its antimagnetic, gold-plated Glucydur balance wheel. This provides exceptional accuracy to chronometer standards. The movement runs at a frequency of 28800 vibrations per hour and has 26 jewels. It also features hacking, which stops the seconds hand when setting the time, and can be wound manually using the crown. A practical date display is located at 3 o'clock. The unidirectional diving bezel allows time intervals to be measured.
The highly legible textured dial is protected by a sapphire crystal, which is highly resistant to scratches. An anti-reflective coating on both sides ensures excellent legibility even in direct sunlight. SuperLuminova luminescence on the hands and indices provides legibility in the dark and in poor lighting conditions. This model has a water resistance of 300 m, making it suitable for greater exposure to water, such as diving. Water resistance is supported by a screw-down crown with a triple-gasket system (FKM Triple-Gasket System).
Reviews and testing:
TikTalk Helveti podcast:
Not sure about the size?
See the watch on a wrist
| Brand | Fortis |
| Gender | Male |
| Style | Dive, Sports |
| Origin | Swiss |
| Guarantee | 5 years |
| Waterproof | 300 m |
| Weight | 108 g |
| Movement | Automatic |
| Caliber | Fortis UW-30 Performance |
| Movement accuracy in seconds | -4 až +6 sec. / day |
Power Reserve  |
38 hours |
| Case size | 40 mm |
| Lug-to-lug: |
43 mm |
| Case height | 12 mm |
| Case shape | Round |
| Case material | Recyklovaná ušlechtilá ocel |
| Case color | Silver |
| Crystal material | Sapphire - anti-reflective |
| Dial | Analog |
| Dial color | Black |
| Transparent Case |
No |
| Threaded lid |
Yes |
| Strap material | Rubber |
| Buckle |
Tang Buckle |
| Strap Width | 21 mm |
| Strap color | Black |
| Date | Yes |
| Rotating bezel |
One way – diving |
| Functions | Date, Swivel bezel, Screw-on crown |
| Screw-on Crown |
Yes |
| Luminescence |
SuperLuminova hands and indexes |
| Other functions | 26 jewels, 28800 vibrations/hour. |
We guarantee the accuracy of the data. Did you find a mistake? Let us know and get 8 EUR on Watch purchase.
Guarantor: Kateřina Žváček
Jiří Štencek
+420 252 252 306
Mo-Th 9-19
Fr-Sa 9-16
info@helveti.eu
The product is included in categories
Men's automatic watches Men's steel watches Men's Swiss watch Men's silver watches Men's sports watches Men's watches with date Marinemaster Marinemaster Men's black watches Men's watches over 400 EUR Men's dive Watches Men's mechanical watches Men's watches with sapphire crystal Men’s Watches Fortis Fortis
The Swiss brand Fortis fully fulfills the meaning of its name, which means "strong" in Latin. It is synonymous with durability, robustness and reliability. Its purely mechanical watches serve professional pilots well, can be used underwater and have even served cosmonauts in space! In the years 1994-2019, Fortis watches were the official equipment of cosmonauts of the space agency Roskosmos. However, the foundations of Fortis' journey into space were already laid in 1961, when the founder's son Rolf Vogt showed the Fortis Spacematic AR (All Risks) watch to NASA astronauts. It was not until 1994 that the Official Cosmonauts Chronograph model looked into open space as part of the preparatory work for the historic connection of the American space shuttle Atlantis with the Russian MIR station.
Fortis is currently working with the Austrian Space Forum as the official timekeeper for the AMADEE Mars Mission simulation. From 2021, the Swedish Space Corporation became the official partner of Fortis in the testing and development of a purely space watch Fortis, where the stratospheric tests of the Werk 17 movement will be of particular interest.
The Fortis brand was founded in Grenchen, Switzerland in 1912 by Mr. Walter Vogt and, in addition to the already mentioned space successes, it has also achieved many other interesting milestones. In 1926, Fortis, in collaboration with the inventor of the first automatic movement, John Harwood, recorded the world's first serial production of a self-winding mechanical watch! Fortis introduced one of the world's first waterproof watches in 1940. Since 2018, its lifelong fan Jupp Philipp has become the owner of the Fortis brand.
Helveti.cz is an authorized dealer and specialist of the Fortis brand.
Manufacturer information: Fortis Watches AG, John Harwood-Strasse 13, 2540 Grenchen, Switzerland / info@fortis-swiss.com
Do you have a question? Leave us a comment
Add a query
1 → We check, clean and set
We will check the functionality, set time, date and clean the watch carefully.
2 → We will carefully pack the watch
So that the watch does not have a chance to be damaged. We use special vacuum pads.
3 → We insure the watch against damage from the carrier
To be sure, we will insure the watch against breakage, so there is nothing to fear.
With each watch, you will receive a gift of your choice from us. Gifts are graduated according to the value of the order.
From €0 = Cleaning cloth, with which you can polish the glass of a watch.
From €100 = Stroke shortener, you can adjust the watch bracelet to your hand.
From €150 = Helveti canvas bag.
From €150 = Credit card knife.
From €170 = Donut watch case.
From €400 = Parker Jotter.
From €600 = knife Mikov 100-NH-2A blue.
From €1000 = Victorinox Waiter knife with 9 functions.
From €1400 = Watchroll for 2pcs.
From €1650 = Helveti leather watch roll.
From €2000 = Leather travel case.
From €2800 = Leatherman REV.
From €4000 = Wooden watch box Helveti.
From €6000 = Watch winder Helveti black.
And on top of that, a 5-year warranty (You can find the terms of the extended warranty here) and free shipping.
You can view the gifts here:
