Same here. Plus they serve as excellent master-timers for setting mechanicals. My currrent 3:hwc wrote: I try to remember to check the time on them once a month, whether they need it or not. I think I've seen one almost a minute off. I prefer quartz watches for just that reason. If I grab one, I want it to already be set with the correct time.
Omaga Polaris: +1 per month, regular.
C3: only 3 weeks old, but looks like +2 or +3 for the month.
Casio: less accurate about +10 per month...wore it last year for a month hiking in Spain (only watch) and I didn't miss my flight home!
It's worth having a quality watch cleaned when you change the battery. I've usually done this with the Omega and will probably use the CW 360 service with the C3.