A Guide to Rolex Serial Numbers and Rolex Reference Numbers This entry was posted on September 28, 2018 by Celine Simon. Once you spend a little time and comparing models, one thing you’ll notice is long strings of numbers and letters being thrown around. Submariner 114060; GMT-Master II 126710BLRO; Daytona 6263; W5642301; D246135 and so on. What do these numbers mean? What’s the difference between Rolex serial numbers and Rolex reference numbers? How can I tell what year my Rolex was produced?
If you have any of these unanswered questions, then read our handy guide to Rolex serial numbers and Rolex reference numbers. What is a Rolex Serial Number? Every Rolex watch that comes out of the factory is designated with its own serial number. As a result, each Rolex serial number is unique (there are exceptions, as we’ll see shortly).