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About this watch
The Formex x Worn & Wound Essence Sector 39 Chronometer was not made for this world. Or, rather, this version of it. It’s a watch from another timeline. One much like our own on the surface, but wildly different upon inspection. A world where some discovery changed everything just enough to stay recognizable, but not be the same. A world where technology developed earlier and faster causing a different outcome.
Imagine, then, the Essence Sector 39 not as a modern watch from our world, but a vintage watch from another. The dial is familiar, yet unusual. A layout we would date to our early twentieth century, but with unexpected details. A different approach for a slightly different history. The case, something entirely strange. A watch head suspended by springs with finishing that belies its rugged capabilities. Robotic, yet ergonomic. It’s a watch for a world where elegant aesthetics meet tough realities.
The case of the Essence Sector 39 speaks to a technologically savvy society. Rugged and durable, but not without elegance and refinement, the watch head measures an ideal 39mm x 45mm x 10mm. Like a gimballed pilot’s chair, a central chassis is spring-mounted utilizing a patented design adding to both ergonomics and shock protection. Brilliantly brushed and polished surfaces add a fit and finish that goes beyond the tough build.
Inside is a Chronometer grade Swiss Made Sellita SW200-1 Automatic movement, officially certified by COSC. After all, such an exacting instrument requires exacting accuracy. The Essence Sector 39 comes mounted to an immaculately finished steel bracelet with quick-release spring bars and a micro extension clasp.
Whether a being from an alternate reality or our own, the Formex x Worn & Wound Essence Sector 39 Chronometer is a watch meant for function but not at the expense of style. Bold dials in unique colorways add personality while Formex’s patented case design brings unrivaled versatility. Available in limited quantities of 50 per color, the Formex x Worn & Wound Essence Sector 39 Chronometer is available now at Worn & Wound's Windup Watch Shop.
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Features
- Swiss Made Automatic Movement
- Chronometer
- Patented Case Suspension System
- Patented Micro-Adjustment System
- Tool-Free Change Of Straps/Bracelet
- Sapphire Crystal
- Anti-Reflective (AR) Coating
- Transparent Case Back
- Water Resistance 10 Bar
- BRACELET
- BRACELET
- CASE
- DIAL
- MOVEMENT
- MOVEMENT
- MOVEMENT
- PRE-ORDER
- HIDE_FIELDS
- INFLUENCER-HEADING
- INFLUENCER-SUBTEXT
- PDP-CUSTOMIZER-HEADING
- PDP-CUSTOMIZER-SUBTEXT
- Retailer-name
- RETAILER-COUNTRY
- RETAILER-AND-ADD-TO-CART
- STRAP-CUSTOMIZER
3-Year Guarantee
We back our watches with a 3-Year international warranty. In the rare case of a malfunction or a movement defect, you can contact us and send your watch back free of charge and we’ll repair it for you within 2 weeks.
Secure Payment
Formex is dedicated to online payment security. We do not store any of your payment information. We offer payment solutions tailored to your shipping destination. Please proceed to checkout to view your local payment options.
Free Express Delivery
All watch prices already include free shipping worldwide. As soon as we have processed your order, you will receive a tracking number to follow your package. Expect your watch within 2 business days within Europe, or within 3 business days for overseas orders. If for any reason you think it’s not the right fit, you can return your watch free of charge. If you contact us before returning or exchanging your watch, we’ll even have your shipping expenses covered.
Swiss Made
All our watches are designed, developed and assembled in-house at our headquarters in Biel-Bienne, Switzerland and meet the current, more strict Swiss Made requirement, which entered into force on January 2017. Every single piece undergoes a variety of quality and functionality controls, before making it to your wrist.

39 mm Stainless Steel Case
The case of the Essence Sector 39 speaks to a technologically savvy society. Rugged and durable, but not without elegance and refinement, the watch head measures an ideal 39mm x 45mm x 10mm. Like a gimballed pilot’s chair, a central chassis is spring-mounted utilizing a patented design adding to both ergonomics and shock protection. Brilliantly brushed and polished surfaces add a fit and finish that goes beyond the tough build.

officially certified movement
The Essence ThirtyNine is powered by a Swiss Made Sellita SW200-1 self-winding movement with a power reserve of 41 hours. We've chosen its highest quality grade "Chronometer" because it comes with premium components such as a Glucydur balance wheel which is exceptionally hard and stable, very resistant to deformation, non-magnetic, and non-corrosive. The movement is completely decorated and wound by Formex’s in-house developed and custom built skeletonized rotor. Each one of these movements is certified by the COSC (the official Swiss Chronometer Testing Institute) and undergoes the meticulous 15-day rate test to ensure extraordinary levels of mechanical accuracy and precision. Each certified chronometer is unique, identified by a number engraved on its movement and a certificate number issued by the COSC. While less than 3% of Swiss watch movements are officially certified, Formex further rate test them per the same criteria after assembly, to measure if there is any deviation from the certification rates.
fine adjustment clasp
Besides contributing to visual appeal, the details on the Essence ThirtyNine also serve a purpose. For a timepiece to be a watch for all occasions, it needs to feel exceptionally comfortable on the wrist. For even more wrist comfort, Formex added their patented Carbon Fiber Composite Folding Clasp that allows for fine-adjustment of the strap length on the go, allowing for a perfect fit on the wrist in all conditions and temperatures. The strap can be changed without the use of any tools with Formex's patented quick release system. The stainless steel bracelet with screwed links has the same quick release system and also features a unique micro-extension system.

The Sector dial
The dial of the Essence Sector 39 features the language of the sector dial, known for its symmetry and a concentric array of indices. A wide central region with bold cross-hair lines in contrasting colors creates a strong graphic anchor. This leads to a ring with a brushed metallic finish, on which the hour index is printed. Three, nine, and twelve numerals in a clean sans-serif type rotate depending on their position. A signature element of sector dials, it also provides an oddness, something just a touch unsettling. The date window seamlessly integrates into this surface to not break to pleasing concentric circles.
TECHNICAL SPECIFICATION
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MOVEMENT
Swiss Made Sellita SW200-1 (self-winding) Automatic (Chronometer grade), officially certified by COSC. 26 jewels and glucydur balance wheel. Date display. Custom-built skeleton rotor with thermally blued screws. 41 hours power reserve.
CASE
Diameter: 39mm
Height: 10mm
Lug width: 20mm
Lug-to-lug: 45mm
Water resistance: 10 bar (100 metres / 330 feet)
Weight: 65g (case only)MATERIAL
Bezel: Stainless steel 316L
Case: Stainless steel 316L
Glass: Sapphire crystal (front and back) with anti-reflection treatment -
STRAP
Italian calf leather straps with curved spring bars, Quick Release function and carbon fiber composite folding clasp with patented Micro-Adjustment System.
Stainless steel bracelet with Quick Release and Micro-extension function.
All Essence straps and the bracelet can be changed by hand without the use of tools. The carbon fiber composite folding clasp with patented fine adjustment system can be changed without tools and can be used for all Essence ThirtyNine leather straps.
DIAL
Sector dial in Blue, White and Gray. BGW9 Super-LumiNova on hands and indexes.
Suspension System
Since the beginning of Formex in 1999, the patented Case Suspension System has been an integral part of Formex timepieces. Its two main functions are:
- absorbs shocks to protect the mechanical movement from heavy impacts
- adds to the comfort on the wrist by adapting to the wearer’s movements
Modeled with high-performance bikes and racing cars in mind, the Formex patented case suspension system works by integrating four springs between the upper and lower watch case. The result is the ultimate shock absorption system designed to protect the mechanical movement and deliver unparalleled comfort to the wearer.
This patented case suspension system brings form and function together for Formex Swiss watches. It’s functional, it’s state of the art engineering and it’s unquestionably unique - all in one watch.
FINE-ADJUSTMENT DEPLOYANT CARBON CLASP
Your strap comes on our new deployant clasp with a patented fine-adjustment. More intuitive to operate, the new version is fully made out of our proprietary carbon fiber composite. The micro-adjustment is now even easier to use and can be operated while the watch is on your wrist. Lightweight, smooth to the touch, ultra-durable and highly functional, this clasp is a real piece of engineering, making your Watch even more comfortable to wear.