Introduction and Launch: The Rolex calibre 3135 is an automatic, self-winding mechanical movement designed and manufactured by Rolex, renowned for its reliability since its introduction in 1988. As Rolex’s flagship movement, it has powered a vast range of models, from the classic Datejust to the rugged Submariner Date, and has been a trusted companion for explorers, divers, and pilots alike. With a reputation as one of Rolex’s most successful calibres, the 3135 features a practical crown system with three positions.