The Reef 39.5 mm with its "Bahama Blue" dial is the ultimate summer divers' watch with exchangeable ceramic bezels and a patented fine adjustment system for a perfect fit in heat and humidity! Our experts in the Swiss Jura mountains achieve the dial's deep, lustrous shine by applying colored lacquer on a mirror-polished surface, followed by seven coats of transparent lacquer, which are then polished down. This is evident in the 6 o'clock date window, a hallmark of all Formex watches. Completing the summer look, the color-matched ceramic bezel is polished with diamond paste, with numerals and hour markers hand-filled with black resin for optimal legibility. The 120-click unidirectional bezel can be removed and swapped by hand with one of four existing options from the Reef 39.5 mm collection. The "Bahama Blue" is powered by a COSC-certified Sellita SW300-1 with 56 hours of power reserve. Our unique gradual fine-adjustment systems in all strap and bracelet options noticeably enhance wearing comfort on the wrist throughout the day, especially during the summer months.

Made In: Swiss Made

Movement:  Automatic 

Bezel: Unidirectional Rotating Bezel

Crown: Screw-Down Crown

Crystal: Sapphire

Coating: Anti-Reflective (AR) Coating

Dial: Blue

Water Resistance: 30 Bar

Patented Micro-Adjustment System: Yes

Strap: Tool-Free Change of Straps/Bracelet