I have a Hamilton Pan Europe with the CO7.111. Bought it when that watch came out approximately 12 years ago and it's still going strong. It's still not exhibiting any symptoms which would
indicate a need for servicing. Accuracy is still very good as is PR. When I bought it I already had quite a few watches so wrist time has not been huge. I try to rotate pieces or at the very least give them a manual winding
every few weeks, doing that with 2824s (or S200 Sellitas) is not recommended by some people but my hope has always been that it is better than the movement not running for extended periods or leaving a
watch on a winder. I didn't know it had plastic parts but so far so good.