Took some comparison pics of my Seamaster Planet Ocean and my Speedmaster Racing. The PO is the 2201.50 42mm and the Speedmaster Racing is 40mm. I love both these pieces and I feel that the two alone would make a pretty decent collection. The Racing doesn't seem to get much love, but I think it's a hell of a watch.
You think your racing doesn't get love!! Mine does not even have a name being from between the Date and the racing!!! Great watches though!