FORMEX WATCH: REEF 39.5 MM “BABY” AUTOMATIC COSC 300M

The Formex Reef 39.5 mm Automatic Chronometer COSC 300M is a Swiss dive watch combining elegant design and high-level technical performance. Its modular design allows for easy customization, notably thanks to tool-free interchangeable bezels and straps.

Technical Specifications

• Case : 316L stainless steel with satin and polished finishes, 39.5 mm diameter, 11 mm thickness, 45.5 mm length (lug to lug).

• Lens : Unidirectional zirconium oxide ceramic, available in several colors, easily interchangeable without tools.

• Glass : Sapphire with anti-reflective coating, offering optimal readability and increased scratch resistance.

• Dial : Available in several colors with a sunburst finish, applied hour markers, and luminescent hands filled with Super-LumiNova BGW9 for optimal visibility in the dark.

• Movement : Swiss automatic caliber Sellita SW300-1, COSC-certified chronometer, offering a 56-hour power reserve.

• Water resistance : 300 meters (30 ATM), suitable for professional diving.

• Bracelet : Stainless steel with patented micro-adjustment system, or rubber or leather options, all equipped with a tool-free quick-change system.

• Case back : Screw-on, ensuring optimal water resistance.

Why choose this watch?

The Formex Reef 39.5 mm Automatic Chronometer COSC 300M is ideal for diving watch enthusiasts seeking a combination of Swiss precision , robustness , and personalization . Its refined design and technical features make it a perfect choice for everyday wear or your underwater adventures.