Question: what is the difference between rolex 14060 and 14060m?
Answer: When Rolex first introduced the ref. 14060 in 1990, it came equipped with the Caliber 3000 automatic movement. Then in 1999, Rolex furnished the no date Submariner with the Caliber 3135 automatic movement, thus the 14060M was born where “M” stands for “modified.” Yet, the style of the watch remained the same.