[Z06]

Originally Posted by Tools

The serial is not tied to a "year", but rather to a set of years that the model was known to be on the market... Almost all serials were used for 2 years and some were used for as many as 4.. Rolex has had two or three prefixes in the market at the same time too... Since there is a letter and 6 numbers, then they likely released close to a million serials with each letter throughout the line

However, Rolex has never released production numbers, so it is unknown how many watches they produce each year, or how many of each model within the line are produced.........

Thanks Larry!