If i was you i would just get that one you have serviced (if it needs it) as you will struggle to find new that is comparable (imo) and you like yours and it has history so............
Can't go wrong with Spencer. He did my Dad's 6139-6105 and it's dead on whenever I wear it.Thanks to all of you for the input. I've been in touch with Spencer but I wasn't aware that he does servicing until just now. I'm going to talk further with him.