Yea, all the wealthy types I know wear the newest iWatch, FitBit, etc. Having a Rolex or similar used to represent not only affluence but it was dead accurate; with tech advancements the mechanical precision isn't nearly as important.
Regarding driving mulholland drive, don't bother, or at least go before 7am on a Sat/Sun. That road has historical significance but it's so regularly traveled by tourist buses, locals, maintenance workers, etc that it's a mess of traffic and potholes. Every time I've gone I've gotten stuck behind a dump truck or EconoLine Van with the top cut off for tourists to look across the LA basin.
Angeles Crest Highway out to Newcomb's Ranch is a blast and the only traffic is motorcycles and Porsches. Definitely a better drive.