I returned this product, not because it was faulty, but my watch had a defect.  Unless you have multiple watches you really don't need a winder.  Normal use of your watch should provide enough time over the time you are not using the watch to keep it running.  This winder is quiet and does the job it says it will.  I would recommend it for its price.  Obviously, if you are a purest, you would want to purchase the most expensive winder on the market - for the average and sensible user, this will do just fine.