Unitas Unitas 175

Unitas 175 is a manual-winding inhouse movement produced by Unitas. It is a historical pocket watch caliber and serves as a predecessor to the later 649x series, which became widely used in large-diameter watches and remains in production today. The 175 reflects Unitas's role as a supplier of foundational pocket watch movements before the industry shifted toward smaller-form automatic calibers. Production of the 175 is discontinued.