Formex Essence 39mm Automatic COSC: A Comprehensive Look at the 2026 Upgrades

Introduction

The Formex Essence 39mm has been a favorite among enthusiasts for its balanced proportions and innovative case suspension system. For 2026, Formex has refined this model with significant technical updates that enhance both performance and everyday usability. The new Essence 39mm Automatic COSC retains the beloved design while introducing a longer-lasting movement, a screw-down crown, and a smarter bracelet clasp.

Design and Case

The stainless steel case measures 39mm in diameter, 45.5mm lug-to-lug, and 10.5mm in thickness, maintaining the same dimensions that made the original so wearable. The case features a mix of brushed and polished surfaces, with the signature four corner screws and the patented Case Suspension System that uses a titanium inner container to protect the movement from shocks. The most notable external change is the new screw-down crown, which now ensures better water resistance without altering the case profile. The watch remains water-resistant to 100 meters.

Dial Options

Three dial variants are available: classic Blue, Alpine White with blued hands and indices for enhanced contrast, and a new Radiant Bronze with warm gunmetal-toned hands and indices. All dials feature the distinctive horizontal grooves that are CNC-milled, along with applied indices, faceted hands, and a color-matched date window at 6 o'clock. Luminescence is provided by Super-LumiNova BGW9 on both hands and indices.

Movement and Performance

Under the hood, the Essence 39mm now houses the Sellita SW200-2 Power+ COSC, a significant upgrade from the previous SW200-1. This new movement operates at 28,800 vibrations per hour and offers an extended power reserve of 65 hours, up from 42 hours. It also features improved winding efficiency, shock resistance, and a better regulating system. The movement is COSC-certified as a chronometer, ensuring high accuracy.

Bracelet and Strap Options

Formex collaborated with Dexel to develop a new butterfly clasp with tool-free micro-adjustment. This clasp allows on-the-wrist adjustments in 3mm increments, up to 6mm of extra length, making it easy to achieve a perfect fit. The watch is available on a stainless steel bracelet with a quick-release system, or on a variety of leather, rubber, and nylon straps in colors including black, blue, brown, green, and red. All strap options feature curved quick-release spring bars and a carbon-fiber deployant clasp with patented micro-adjustment offering 7mm of adjustment across six steps.

Buying Tips and Authenticity Notes

When purchasing a Formex Essence 39mm Automatic COSC, ensure you buy from an authorized dealer to guarantee authenticity. Check for the correct model reference and COSC certification papers. The new movement with 65-hour power reserve is a key selling point, so verify that the watch indeed has the SW200-2 Power+ caliber. The screw-down crown should be tightened before any water exposure. For those who value versatility, the quick-release strap system allows easy changes, making it a great everyday sports watch.

Pricing and Availability

The Formex Essence 39mm Automatic COSC is priced at CHF 1,470 on a strap and CHF 1,570 on a stainless steel bracelet. Orders open on August 27, 2026, with deliveries starting in October 2026. This model is part of the standard collection, so it should remain available for the foreseeable future.