Introduction and Launch: The Rolex calibre 740, introduced in 1945, was a groundbreaking movement that set new standards in horology. This automatic, chronometer-certified calibre was the first to combine self-winding functionality with a date window on the dial, debuting in the iconic Datejust. Its innovation not only enhanced convenience but also laid the foundation for future Rolex advancements, solidifying the brand’s reputation for precision and reliability.
