Ok so i baught a dj from ruby and it was or does have swis eta movement. but it does not have a smooth sweep it is a little faster than a 21j but its not the same as a gen rolex. did i get burned or does it need to just be serviced. i also have a clone that has an even slower beat rate. So my question is, is there a place i can but the swiss eta movement and replace the one i have. Thanks