Vintage Gruen 17J Precision Model N510CA Good Running Wristwatch. I think the stem it has is not the original one. It will wind-up the watch but will not set the time and it will pull all the way out. I really don't remember where or how I aquired this watch. I thought it might be one that it will be worth fixing as I am not into wristwatches. It has a good usable Leather band. Thanks.