I can't freaking believe I missed this thread until now. I'm a watch nut but I have only been looking at car stuff on this site!
I think the watch I own that matches my E90 the best my Breitling Avenger Seawolf on bracelet (black dial).
The other watches you will see me wearing in my car are a Panerai 112 on a variety of straps, a Omega Planet Ocean XL with orange bezel and markers, a Rolex Sea Dweller, or even a Casio Pathfinder.
