
The Formex Reef 39.5 mm is widely praised for its refined finishing, comfortable and well-proportioned case design, and impressive specifications for its price point, including COSC-certified Sellita SW300-1 movement and 300m water resistance. Owners and reviewers highlight the tool-less micro-adjust clasp and quick-release spring bars as practical features. Some reviewers note that the 22mm lug width feels slightly disproportionate to the smaller case, and the bracelet could benefit from more taper, though this is a point of contention for some owners who value the overall package. A prototype crown protrusion issue is noted as being addressed for production. On balance, owners and reviewers rate the Formex Reef 39.5 mm highly for its excellent value and well-executed design.
The Formex Reef 39.5 mm (ref. reef-39.5-automatic-chronometer-cosc-300m-bahama-blue) is an automatic diver watch, with a 39.5mm stainless steel case, 11mm thick, powered by the Sellita SW300-1 movement and a 56-hour power reserve. Water resistance is rated to 300m, under a sapphire crystal. Manufacturer MSRP is $2,230. The dial color is bahama blue.