Collaborative efforts have been a pillar of the watch world in recent years, and one of the most consistent of the bunch is a group called Collective Horology. They?ve worked with some of our favorite brands, and as of recently, are a retailer for the British brand Fears. If you?ve been to our recent Windup Watch Fairs, you?d likely have had the opportunity to chat with the group?s founders, Asher Rapkin and (podcast alum) Gabe Reilly. These guys are true watch nerds and each release is an expression of their enthusiasm. Their latest project, a collaboration with Armin Strom, is the third within their Portfolio series, joining the Urwerk UR100 P.02, and the J.N. Shapiro Infinity Series P.01.

The P.01 is an impressive technical showcase featuring Armin Strom?s Gravity Equal Force platform. As you might have guessed, this is a watch that utilizes a constant force transmission, ensuring consistent chronometric performance throughout the reserve of the mainspring. The Armin Strom is the first to apply such a mechanism to an automatic watch, as these generally come in the form of a remontoir, fusee and chain, or other exotic solutions fit to watches at the upper echelons of haute horology. Armin Strom uses a ?stop-work? declutch mechanism (partially visible under the mainspring bridge) they?ve developed at their workshops in Biel. This mechanism prevents the mainspring from fully unwinding, leveraging only the part of the mainspring?s unwinding process which can delive...