Problem with ladies datejust

[kwinky]

I recently purchased a pre owned watch for my wife. When fully wound and worn constantly, it will temporarily stop running. Watch came with 1 year warranty. Took it back, seller sent to "their watch guy" who said nothing wrong, possible user error. I don't know what the service consisted of, maybe open and see if anything fell out. Watch is still stopping even though it is worn constantly. Is it normal for a ladies Rolex to stop like that? I have a mens model I have been wearing for over 30 years and it never needs winding. Not sure what to ask them to do short of asking for a refund. I just feel its not normal for the watch. By the way, my wife works in an office environment. No idea as to any previous service.