Serial letters give you information about when a Rolex watch was made, but not necessarily when the watch was sold. For older serial numbers, please visit this page.
Following the G-serial letter, Rolex began with a new system of random serial numbers, which makes determining manufacture dates difficult.
| SERIAL PREFIX | YEAR OF MFG. |
| R | 1987 |
| L | 1988 |
| E | 1990 |
| X | 1991 |
| N | 1991 (Nov) |
| C | 1992 |
| S | 1993 |
| W | 1994 |
| T | 1996 |
| U | 1997 (Aug) |
| A | 1998 (Nov) |
| P | 2000 (Jan) |
| K | 2001 (Sep) |
| Y | 2002 (Sep) |
| F | 2003 (Sep) |
| D | 2005 (Apr) |
| Z | 2006 (May) |
| M | 2007 (Aug) |
| V | 2008 (Aug) |
| G | 2010 (Jun) |