A bit late to your thread, but I would highly recommend taking it to an independent repair shop instead of RSC. Last I heard, they're not willing to service 6694 anymore and will charge exorbitant prices even if they do because they will just replace most of the parts like dial, hands etc. You won't get back any of the parts that they replace for you either. Since this is such a sentimental piece, I think it's better to go independent. I saw you mentioned the watch is in non working condition currently, so it might be hard to get an exact quote on how much it will cost to fix it. You can try out Time&Motions in Publika.