Inspired by Jim's photograph, I have added his reference 510.403 to our page of "510s", also known as the "1000 Series" [ ?? ] . But I notice that our Chronograph Master Reference Table does not include this model. I also need to add the Reference 510.508, recently discovered by Chuck.

Here are my questions:

-- does anyone have a complete list of the "510" series?
-- does the 510.403 belong here? everything else in the series is 510.5xx? Is the 510.403 properly included in this series?
-- where does the Audi Sport chronograph fit into the line-up? what reference number for that one?

It is hard enough organizing a website when you know something about the subject matter. Dealing with these "510"s is a bit more challenging for me, since I know very little about them.

thanks for any information or suggestions as to how these should be presented.

jeff