| Movement | Automatic |
| Case material | Steel |
| Crystal material | Sapphire - anti-reflective |
| Weight | 138 g |
| Waterproof | 100 m |
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Movement
Automatic
Case material
Steel
Crystal material
Sapphire - anti-reflective
Weight
138 g
Waterproof
100 m
The edition with the malachite dial is limited to just 120 pieces in 2026.
The Swiss Formex Essence FortyOne Automatic Chronometer Malachite Steel Bracelet 0334.1.6690. At first glance, the 100 model captivates with its striking faceted case featuring striking polished surfaces and a black mother-of-pearl dial that reveals subtle shades of pink, green, and silvery blue when light hits it. It is the first model in the Essence ThirtyNine collection to feature the newly adopted COSC-certified Sellita SW200-2 Power+ movement with an extended power reserve of 65 hours.
The malachite dial is one of the most striking features of this model. Each piece is crafted from natural stone, whose characteristic stripes, swirls, and color transitions—ranging from deep green to nearly black— create a unique pattern. As a result, no two dials are exactly alike. The organic structure of the stone is elegantly complemented by hand-applied hour markers and hands with mirror-polished facets, which create a striking contrast.
The name of this gemstone is said to be derived from the ancient Greek word “malache,” meaning mallow, because the stone resembles the color of mallow leaves. The spiritual meaning of malachite is transformation, and it is said to be the essence of joy—and there’s certainly some truth to that: just a glance at the marbling, swirls, and rings in the stone’s pattern is enough to bring a smile to your face.
The case of the Formex Essence FortyOne Automatic Chronometer Malachite watch is made of steel with a brushed finish, complemented by striking polished panels. The case is equipped with an innovative integrated Case Suspension System, which helps protect the movement from the effects of shocks. This new-generation case features a screw-down crown for even greater reliability during sports activities. Despite this technological enhancement, the case is only 10.6 mm thick. The case is complemented by a steel bracelet featuring a redesigned butterfly clasp that can be extended by 3 or 6 mm without having to open the clasp or remove the watch from the wrist.
The watch is powered by the newSellita SW200-2 Power+ (Chronometer Grade) self-winding mechanical movement, which is COSC-certified. Compared to the previous generation, it features a redesigned construction that has increased the power reserve from 41 to 65 hours without reducing the frequency. The movement thus continues to operate at a frequency of 28,800 half-vibrations per hour (4 Hz), which contributes to high accuracy and stability.
Of course, the movement includes crown winding, a hacking function to stop the seconds hand when setting the time, and a date display at the 6 o’clock position.
The classic hallmarks of the Formex Essence FortyOne Automatic Chronometer Malachite include a distinctive dial made of natural semi-precious stone, the Case Suspension System, enhanced water resistance, and a buckle with fine micro-adjustment.
The easy-to-read dial is protected by a sapphire crystal with an internal anti-reflective coating and high scratch resistance. Sapphire is also used for the case back, through which one can observe the operation of the decorated movement with blued screws. Better readability in low-light conditions is ensured by luminescent material (BGW9 Super-LumiNova) applied to the hands and hour markers. It is precisely the unusually colorful dial and the high-gloss hour markers that create a very interesting effect. The overall impression is enhanced by the thoughtfully designed date window at the 6 o’clock position.
The case diameter is 41 mm, so the watch fits perfectly on most men’s wrists. The model is water-resistant to 100 m (10 ATM). You’ll especially appreciate the watch’s versatility; its features make it ideal for sports, water activities, and everyday use.
You can purchase a leather or rubber strap for the watch, featuring a carbon folding clasp with an innovative system for fine micro-adjustment within a 7 mm range. You can easily adjust the length by pressing the side button without having to remove the watch from your wrist.
Technical Innovations:
New patented butterfly clasp with micro-adjustment (0 mm, 3 mm, 6 mm)—adjustable on the wrist without tools and without unfastening the clasp.
New screw-down crown, designed for a case with a shock-absorption system.
New bracelet screws with precisely positioned threads—no need for anti-loosening adhesive.
You can also find this watch under the model number Formex 0334.1.6690.100
Not sure about the size?
Print size patterns
(For printing set - Scale: Default)
| Brand | Formex |
| Gender | Male |
| Style | Sports, Universal |
| Origin | Swiss |
| Guarantee | 5 years |
| Waterproof | 100 m |
| Weight | 138 g |
| Movement | Automatic |
| Caliber | Sellita SW200-2 Power+ |
| Movement accuracy in seconds | -4/+6 sec. / day |
Power Reserve ![]() |
65 hours |
| Case size | 41 mm |
Lug-to-lug: ![]() |
46,5 mm |
| Case height | 10,6 mm |
| Case shape | Round |
| Case material | Stainless steel |
| Case color | Silver |
| Crystal material | Sapphire - anti-reflective |
| Dial | Analog |
| Dial color | Green |
Transparent Case ![]() |
Yes |
| Strap material | Stainless steel |
Buckle ![]() |
Butterfly Clasp |
| Strap Width | 22 mm |
| Strap color | Silver |
Quick release system ![]() |
yes |
| Date | Yes |
| Functions | Date, COSC |
Luminescence ![]() |
Super-LumiNova hands, numerals and indexes |
| Other functions | 26 jewels, 28.800 oscillations / hour |
We guarantee the accuracy of the data. Did you find a mistake? Let us know and get 200 CZK 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 Essence Essence Men's silver watches Men's sports watches Men's watches with date Men's watches novelties Men's watches over 400 EUR Men's mechanical watches Men's universal watches Men's watches with steel bracelet Men's watches with sapphire crystal Watch gift for men Men's green watches Formex Formex
Formex Watches is an independent Swiss watch manufacturer based in Biel-Bienne, the cradle of Swiss watchmaking, where the entire production process takes place from design, development, assembly and testing of all watches. The company was founded in 1999 with the aim of producing watches that will meet the highest quality standards. The brand is known for the use of high-tech materials and the development of unique improvements and functions, leading to the technical perfection of the watch and an increase in wearing comfort - for all of them, let's name the Case Suspension System, a patented suspension system of the case, protecting the movement of the watch during impacts and increasing comfort on the wrist.
The Formex brand was founded by two brothers, watchmakers and watch enthusiasts who wanted to combine their passion for watches with their love of motorsport. High resistance is therefore typical for the design of the watch, suitable even for extreme conditions. It is aimed not only at watch lovers, but also at all athletes, outdoor enthusiasts and adventurers who require functionality and high reliability.
Formex is a combination of the French words "forme" and "extrème", loosely translated as extreme form/shape. All watches assembled at the brand's headquarters in Biel-Bienne meet the strictest requirements of the Swiss Made label. Every single piece goes through careful quality control and testing. Formex watches reflect love for watchmaking, high quality workmanship, innovative approach, relentless development, use of special materials and exceptional craftsmanship.
Helveti.eu is an authorized retailer, specialist and certified expert of the Formex brand.
Series: Essence Essence Leggera Field Automatic Reef
Manufacturer information: Formex, Chemin du Long-Champ 95F, 2504 Biel, Switzerland / info@formexwatch.com
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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: