Watch

Formex Unveils the Reef 39.5mm Automatic COSC 300M Forged Carbon Timepiece

By Apr 16, 2026
Read time3 min

Formex, a brand renowned for its dedication to superior construction within its price segment, has unveiled an exciting new iteration of its Reef collection. This latest offering introduces a more compact 39.5mm automatic dive watch, notable for its distinctive forged carbon elements. This model continues Formex's tradition of combining technical prowess with impressive value, making a bold aesthetic statement while retaining core functionalities.

The newly launched Formex Reef 39.5mm Automatic COSC 300M Forged Carbon maintains the proven foundation of the "Baby Reef" series. This platform is celebrated for its highly wearable dimensions, robust 300-meter water resistance, and a chronometer-certified automatic movement. A standout feature is its innovative interchangeable bezel system, offering both practicality and versatility. The unique aspect of this specific model lies in its use of forged carbon for both the dial and the bezel insert. This material lends a visually captivating marbled texture, ensuring that each timepiece possesses a one-of-a-kind appearance. Unlike conventional dials that pursue flawless uniformity, these forged carbon components celebrate intentional imperfections, creating a dynamic visual depth that reacts uniquely to light.

Despite the aesthetic enhancements, Formex has ensured that the core functionality of the Reef remains uncompromised. The slim 39.5mm case, with a lug-to-lug distance of 45.5mm and a thickness of 11mm, ensures comfortable everyday wear while upholding its 300m dive rating. Powering the watch is the reliable Sellita SW300-1 movement, which is COSC-certified for precision and offers a 56-hour power reserve. The quick-release bezel system and interchangeable straps or bracelets further highlight the watch's adaptability, underscoring its design as a serious tool rather than merely a decorative piece. This thoughtful integration of innovative materials and user-friendly features demonstrates Formex's commitment to both form and function.

This timepiece represents a significant evolution for Formex, successfully marrying a modern dive watch's capabilities and durability with a distinctive, expressive design. The introduction of forged carbon provides an element of individuality often absent in this category, suggesting a deliberate shift in the brand's creative direction. Available for pre-order, with shipping anticipated in early May 2026, the Formex Reef 39.5mm Automatic COSC 300M Forged Carbon starts at €1,960 / US$2,085 / £1,820 on a strap, with bracelet options and additional bezels also available. It's a compelling reminder that performance and unique style can coexist seamlessly within the realm of high-quality tool watches.

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