About this watchWith 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 indicescreate 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.
- Swiss Made Automatic Movement
- Unidirectional Rotating Bezel
- Screw-Down Crown
- Sapphire Crystal
- Anti-Reflective (AR) Coating
- Water Resistance 30 Bar
- Patented Micro-Adjustment System
- Tool-Free Change of Straps/Bracelet
We back our watches with a 3-Year international warranty. In the rare case of a malfunction or a movement defect, you can contact us and send your watch back free of charge and we’ll repair it for you within 2 weeks.
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Free Express Delivery
All watch prices already include free shipping worldwide. As soon as we have processed your order, you will receive a tracking number to follow your package. Expect your watch within 2 business days within Europe, or within 3 business days for overseas orders. If for any reason you think it’s not the right fit, you can return your watch free of charge. If you contact us before returning or exchanging your watch, we’ll even have your shipping expenses covered.
All our watches are designed, developed and assembled in-house at our headquarters in Biel-Bienne, Switzerland and meet the current, more strict Swiss Made requirement, which entered into force on January 2017. Every single piece undergoes a variety of quality and functionality controls, before making it to your wrist.
Unidirectional rotatable Ceramic bezel
Being one of the most exposed parts, the unidirectional rotatable bezel is made of an extremely hard and scratch-resistant Zirconium oxide ceramic. The graduations and numbers are engraved by femto-laser pulsations. Each bezel takes 60 minutes of precision engraving to achieve its three-dimensional effect. Machined gear-like indentations on the bezel’s edge allow a diver the ideal grip to safely set and monitor diving time and decompression stops. The 120 click action is responsive and smooth, yet offers firm and precise function of the bezel. Besides that, the bezel can be changed without the use of any tools.
officially certified movement
The Reef 39.5mm is powered by a Swiss Made Sellita SW300-1 self-winding movement with a power reserve of 56 hours. We've chosen its highest quality grade "Chronometer" because it comes with premium components such as a Glucydur balance wheel which is exceptionally hard and stable, very resistant to deformation, non-magnetic, and non-corrosive. Another reason why we've purposely chosen this thin movement is because it allowed to construct the Reef at just 11.0mm overall height. The movement is completely decorated and wound by Formex’s in-house developed and custom built skeletonized rotor. Each one of these movements is certified by the COSC (the official Swiss Chronometer Testing Institute) and undergoes the meticulous 15-day rate test to ensure extraordinary levels of mechanical accuracy and precision. Each certified chronometer is unique, identified by a number engraved on its movement and a certificate number issued by the COSC. While less than 3% of Swiss watch movements are officially certified, Formex further rate test them per the same criteria after assembly, to measure if there is any deviation from the certification rates.
fine adjustment clasp
Besides contributing to visual appeal, the details on the REEF also serve a purpose. For a timepiece to be a watch for all occasions, it needs to feel exceptionally comfortable on the wrist. For even more wrist comfort, Formex added their patented Carbon Fiber Composite Folding Clasp that allows for fine-adjustment of the strap length on the go, allowing for a perfect fit on the wrist in all conditions and temperatures. The strap can be changed without the use of any tools with Formex's patented quick release system. The stainless steel bracelet with screwed links has the same quick release system and also features a unique fine-adjustment system.
meticulous attention to detail
Understated at first glance, but beneath the apparent simplicity lies exceptional craftsmanship in every respect. Take the symmetrical 39.5mm stainless steel case with its incredibly detailed finish on the ceramic bezel, perfectly rounded off with hand-finished mirror-polished bevels. The sunray finished dial is manufactured at Formex’s in-house dial manufacture in the Jura mountains. The gradient for the different colors is sprayed by hand. The REEF’s bold rehaut-style hour markers are also hand-applied and triangle shaped, pointing towards the broad hour and minute hands that share the same detailed beveled mirror polish and brushed top surface finishing. 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. Being able to read the time with absolute certainty is a matter of survival when diving.
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.
Lug width: 22mm
Water resistance: 30 bar (300 metres / 1000 feet)
Weight: 75g (case only)
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
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
Multi-finished & 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.