Reference Material

[Token74]

I am currently considering adding three watches to my collection; a Project X Daytona (I know, I know!!) for my daily wear work watch, a 1974 5513 for those vintage days when I want to be a little different, and an investment Rolex to be presented to my son in the future.

Is anyone aware of any complete reference material on the web or available in book form that will give me a complete list of model numbers and approx. volumes (without spending mega money, I'd like the watch for my son to be something that will increase in value more than mainstream).

Thanks in advance.