If one is looking for highly accurate watches and I mean highly, highly jeweled, high frequency quartz cannot be beat with any mechanical watch, period. An example is the Grand Seiko ( grow their own quartz) 9F movement which is within 5 seconds per year. Many have tested out at +/- one second per year. Girard Perregaux caliber 350 quartz is an amazing 32,768 hertz ( vibrations per second) will also perform within one second per year.
High end quartz is also thermo-compensating to eliminate the temperature fluctuations that occur in standard quartz watches just as an example.
None of this matters to 99% of people, but something tells me you like specifics.

I will be glad to help and offer opinions if you like, but don't want to bore with details also.