I need a flat (not warped) one of these (the colored disc with letters and numbers): According to my watchmaker, the one inside my otherwise perfect watch is warped just enough to prevent the chrono-feature from working.
Still looking for a replacement disk, however, if I can't find one, I have a beautiful VIP Memosail for sale, fully serviced, just doesn't "countdown". See here: https://omegaforums.net/threads/memosail-vip-valjoux-7737-350.57016/