Like the other Reef 300M models from Formex, this Collective edition measures 42mm wide, 11.4mm thick, and 47mm lug-to-lug. It has a sapphire crystal up front, a steel case back, and 300 meters of water resistance aided by a guarded screw-down crown. For those that are unaware, Collective (aka. Collective Horology) is a west-coast-based membership and shop platform that specializes in working with brands to create limited collaboration watches. In the past they have worked with brands like IWC, Urwerk, Armin Strom, Czapek, and J.N. Shapiro.