Thanks for putting this together and I know this will become the reference post for all enthusiasts looking for background/historical information on the Star Collection.
There are so many other interesting "vintage" Star Collection watches. I wouldn't call them "grails" but they show the same DNA and all created to match their respective fountain pen limited edition. For example
The skeleton watch

The Han Wu Ti

The Princess and the Pea

I don't know if I would match "pen with watch" but certainly early MB Star watches were created for that clientele who did
Thanks, Mike