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Opened July 1999, zOwie is the Internet's first and longest running discussion forum dedicated to Omega brand watches.

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Accuracy/COSC/Battery Question

OK, guys, fill me in:

I understand Breitling has this "SuperQuartz" drive that's accurate to within 15 seconds or so per year; Breitling's are supposed to be the only quartz movements that meet COSC's criteria for quartz chronometers. (I hadn't known such a thing existed.)

My Q: How accurate are Omega quartz movements supposed to be?

Another Q: Assuming I buy an Omega quartz, can I have the battery changed at my authorized Omega dealer or do I have to ship it off for three weeks? I'm getting mixed feedback from owners on this one.

Final Q: I've heard [ugly] rumors that quartz movements have some sort of limited lifetime-- that the quartz (I think) eventually suffers some natural degradation; might mechanical movements actually last longer than current quartz? (Or will we all be dead and buried by the time any of them die?)

Thanks,
JB, the humble WI (not on a par with you savants)

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