Возможно дело еще и в коаксильном спуске. Перичитал много тем на эту тему, но так и не понял коаксил это зло или добро.
Привожу цитату с обзора на таймзоне
Ive especially chosen this model, and not the recently introduced ref. 2220.80.00 (which has the raised hour markers and Co-Axial cal.2500 movement), because I personally like the more simple dial a lot, I prefer the older caseback without that polished mega-seahorse on the back, and because this model is a bit flatter in profile. Ive also had a few problems with my other Omega watches that came with the cal.2500, and never had any problems on cal.1120-based watches.
Plus, I just cant justify the extra cost of the new 2220.80.00 compared to this older 2531.80.00, as the only differences are the balance-construction in the otherwise same ETA2892A2-based movement, longer hands, different dialprint and the less comfortable caseback
http://forums.timezone.com/index.php...=2823439&rid=0
