My Bulova Aqua Queen, 1965 vintage with movement 7BPC has cleaned up well cosmetically. New crystal, and case looking good. I put it on Watch-O-Scope and it is running about 8 sec/day fast, amplitude 334 degrees and beat error 7.8ms. I think this looks pretty good. Is there anything I can/should do for this? Is cleaning and lube asking for trouble?