Formex Essence 39mm COSC 2026: Super-LumiNova Markers and a 65-Hour Power Reserve
Formex Upgrades Its Best-Seller with Improved Lume and Movement
Swiss brand Formex has released the Essence 39mm Automatic COSC for 2026, a generational update to its best-selling model. Among the key upgrades are improved Super-LumiNova-coated applied hour markers that enhance low-light legibility, a screw-down crown, and an updated Sellita SW200-2 Power+ movement with a 65-hour power reserve.
Super-LumiNova Application: Applied Markers vs. Printed
The new Formex Essence 39mm features applied hour markers coated in Super-LumiNova, a step up from printed lume often found at this price point. Applied markers provide greater lume surface area and more even application, resulting in brighter and longer-lasting glow in darkness. The horizontal line motif on the dial further enhances light play across the markers.
| Specification | Detail |
|---|---|
| Case Size | 39mm diameter × 10.5mm thick |
| Lume Type | Applied markers with Super-LumiNova coating |
| Movement | Sellita SW200-2 Power+ (COSC certified) |
| Power Reserve | 65 hours (up from 38 hours) |
| Water Resistance | 100 meters |
| Crystal | Sapphire with interior AR coating |
| Price | $1,850 (strap) / $1,980 (bracelet) |
Three Dial Options with Enhanced Lume
The Essence 39mm launches in three colorways: Blue, Alpine White, and Radiant Bronze. Each features the signature horizontal groove pattern and applied luminous indices. The blue and bronze dials use BGW9-style lume (white in daylight, blue-green glow), while the white dial variant employs a different formulation for optimal contrast.
Upgraded Movement: SW200-2 Power+
The new SW200-2 Power+ shares architecture with the familiar SW200-1 but features numerous reworked components for improved efficiency. It maintains COSC chronometer certification at 4Hz but nearly doubles the power reserve to 65 hours — a significant practical advantage for a daily-wear watch.
Case Suspension System and Clasp
Formex's patented case suspension system, which absorbs shocks through internal springs, remains a defining feature. The 2026 models also inherit the improved butterfly clasp from the limited-edition Essence 41mm "Space Ghost," offering 6mm of tool-free adjustment directly on the wrist.
Frequently Asked Questions
Q: How does Super-LumiNova on applied markers compare to printed lume?
A: Applied markers allow thicker and more uniform lume application. This results in approximately 30-40% brighter initial glow and slower fade compared to printed lume at the same price tier.
Q: Is the Formex Essence 39mm COSC suitable for diving?
A: While rated to 100m water resistance (suitable for swimming and snorkeling), it is not a dedicated dive watch. For underwater use, consider the Formex Reef with its 300m rating and dive bezel.
Q: What is the benefit of the 65-hour power reserve?
A: A 65-hour reserve means you can remove the watch on Friday evening and it will still be running Monday morning — eliminating the need to reset time and date after a weekend off the wrist.
Sources: aBlogtoWatch