Formex Reef 39.5 mmvsSeiko Prospex Marinemaster 1965 Diver’s Modern Re-interpretation

The Formex Reef 39.5 mm is widely praised for its refined finishing, improved proportions, and compelling value under €2,000. Owners and reviewers highlight its comfortable wearability on smaller wrists, unique aesthetic, and impressive specifications including 300m water resistance and a COSC-certified Sellita SW300-1 movement. Some note the 22mm lug width feels slightly disproportionate and the bracelet could benefit from more taper. A prototype crown protrusion issue is expected to be resolved in production. Overall, owners rate the Formex Reef 39.5 mm highly for its excellent build quality and tool-like features at its price point.

The Seiko Prospex Marinemaster Marinemaster 1965 Diver’s Modern Re-interpretation is noted for its slim 12.3mm case and 39.5mm diameter, making it a wearable dive watch. The automatic Seiko 6L37 movement is described as having a 45-46 hour power reserve, with one reviewer noting an accuracy of -10/+15 seconds per day. The watch features a box-shaped sapphire crystal and 200 meters of water resistance. However, its price of A$4,650 is considered high for its specifications, and one reviewer questions Seiko's continued reliance on the 62MAS design. On balance, reviewers find the Seiko Prospex Marinemaster Marinemaster 1965 Diver’s Modern Re-interpretation to be a functional and refined dive watch, though its value proposition is debated due to its price point.