Rolex Articles, FAQs and Resources

Rolex Serial Numbers

All Rolex models that end in 5 or more digits use a number coding that indicates what type of metal was used in the case. The list of metals is shown below. Rolex serial numbers with four digits usually conclude with a slash followed by a number. That last number will also be indicated of the case construction and follow the chart below.

[0] solid steel
[1] solid yellow gold
[2] solid white gold or steel with platinum highlights
[3] two-tone solid steel with yellow gold
[4] two-tone solid steel with white gold
[5] gold plated or 18k red gold
[6] solid 950 platinum
[7] solid 14k yellow gold
[8] solid 18k yellow gold
[9] solid 18k yellow gold