Problem with Ladies Datejust 69173

[Adrenman]

I am sure that this problem has an obvious solution but I should very much like to hear from forum members who may have had the same problem.

My wife's watch (69173/bracelet 62523D) has stopped working! When the crown is wound down, the hands continue to rotate. When the crown is fully wound, the second hand slips when the case is tapped/moved.

I am beginning to feel this could be an expensive matter! Any comments or suggestions as to what the problem is - spring/geartrain etc - would be gratefully received.

Thanks.