Reference · Pillar guide
The complete decoder: what every digit and letter in a Rolex reference number tells you about the watch.
The first digits identify the model and case generation. Rolex moved from five-digit references (16610) to six-digit (126610) as it updated cases and movements, so a longer reference usually means a newer watch. The same leading block recurs across a family: 1266x is Submariner Date, 1267x is GMT-Master II, 1265xx is Daytona.
The digit after the case family encodes the metal: 0 Oystersteel, 3 yellow Rolesor (steel and gold), 4 white Rolesor, 5 Everose gold, 8 yellow gold, 9 white gold or platinum. So 126613 is two-tone, 126619 is white gold.
The letters describe the bezel colour, often from French: LN lunette noire (black), LV lunette verte (green), BLRO blue/red (Pepsi), BLNR blue/black (Batman), CHNR brown/black (Root Beer), VTNR green/black (Sprite). These suffixes are how collectors name the colourways.
Do not confuse the reference with the serial number. The reference describes the configuration and is shared by every watch of that spec; the serial is unique to one watch and indicates its production period. Both are engraved on the case — the reference between the lugs at 12 o'clock, the serial at 6 o'clock (on older watches) or on the rehaut (inner bezel ring) on modern ones.
Reference FAQ
Break it into parts: the leading digits give the model and case family, the next digit gives the metal (0 = steel, 8 = gold, and so on), and the letter suffix gives the bezel colour (LN = black, LV = green, BLRO = Pepsi). Together they describe the exact configuration.
LN stands for lunette noire — French for black bezel. A 126610LN is a Submariner Date with a black bezel; LV (lunette verte) would be green.
It is engraved between the lugs at the 12 o'clock side of the case, normally hidden by the bracelet, and is also printed on the warranty card. You usually need to remove the bracelet to read it.
No. The reference describes the model configuration and is shared by all watches of that spec; the serial is unique to one watch and encodes when it was made. Both are engraved on the case.