Formex REEF 39.5 MM Automatic COSC 300M White 39.5 mm

ABOUT THIS WATCH

With its tool-free exchangeable bezels and straps, the Reef stands out as one of the market’s most versatile mechanical dive watches. Built in a more compact, 39.5mm hand-finished stainless steel case, the “Baby” Reef features an officially certified Swiss movement with 56 hours of power reserve and unique gradual fine-adjustment systems across all strap- and bracelet options, noticeably increasing wearing comfort on the wrist throughout the day.

The 39.5mm stainless-steel case with its distinctive shape provides both a functional guard for the screw-down crown and a visual symmetry alike. Originally designed as a 42mm dive watch, the smaller diameter also means a shorter, more wearable lug-to-lug distance of 45.5mm and a height of just 11mm. A double gasket construction is tested for 300 m / 1000 ft of water resistance. Mirror-polished bevels and brushed surfaces throughout the watch case, bracelet and down to the hands and triangle-shaped indices create a unique balance between elegance and the brand’s high-octane spirit.

The four available dials are manufactured in Formex’s in-house dial manufacture in the Swiss Jura mountains. The blue, green and silver dials are finished with a sunburst effect and a hand-applied color gradient. As for the white dial, the initial application of white lacquer on a mirror-polished surface is followed by the layering of seven coats of transparent lacquer, which are subsequently polished down to achieve a uniquely deep aspect of this dial. To further create visual depth without increasing overall height, the hand-applied indices are triangle-shaped and imitate a chapter ring. To increase legibility and to reflect the case finishing, the indices as well as the broad hour and minute hands are vertically brushed, while the bevels are mirror polished. The date window is angled on both sides to increase legibility of the color-adjusted date. Hands and hour markers as well as a capsule on the bezel’s zero marker are deep filled with Swiss Super-LumiNova® BGW9 that emits a long-lasting blue glow in dark conditions.

TECHNICAL SPECIFICATION

MOVEMENT

Swiss Made Sellita SW300-1 (self-winding) Automatic (Chronometer grade), officially certified by COSC. 25 jewels. Date display. Custom-built skeleton rotor with thermally blued screws. 56 hours power reserve.

CASE

Diameter: 39.5mm

Height: 11.0mm

Lug width: 22mm

Lug-to-lug: 45.5mm

Water resistance: 30 bar (300 metres / 1000 feet)

Weight: 75g (case only)

MATERIAL

Bezel: Unidirectional rotating Zirconium Oxide Ceramic bezel (blue, black, green) / Stainless steel for the steel bezel

Case: Stainless steel 316L

Glass: Sapphire crystal with anti-reflection treatment

STRAP

Black rubber strap with curved spring bars, Quick Release function and carbon fiber composite deployant clasp with patented Micro-Adjustment System. Stainless steel bracelet with screwed links, Quick Release function and stainless steel buckle with patented Micro-Adjustment System.

DIAL

Multi-finish hand-applied Dégradé. BGW9 Super-LumiNova on hands and indexes.

FINE-ADJUSTMENT DEPLOYANT CARBON CLASP

Your rubber strap comes on our new deployant clasp with a patented fine-adjustment. More intuitive to operate, the new version is fully made out of our proprietary carbon fiber composite. The micro-adjustment is now even easier to use and can be operated while the watch is on your wrist. Lightweight, smooth to the touch, ultra-durable and highly functional, this clasp is a real piece of engineering, making your REEF even more comfortable to wear.