Sinn 836vsFormex Reef 39.5 mm

Owners widely report the Sinn 836's 43mm case is large, though its thinness is noted as a mitigating factor for wearability. Legibility is described as uniform across the dial. On balance, owners find the Sinn 836 to be a well-regarded watch for its legibility and comfortable thin profile, though some note its substantial diameter.

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.