American Waltham Watch Co. Sidewinder

I've just been left an old watch by a relative who passed away recently and, have just done a little research into where he might have got it. Judging by the serial number it was manufactured in 1891 or 92 by American Watch Co. Unfortunately, however, it is just the bare watch without the winder or its cover.

Does anyone know if it's possible to repair and replace the cover of this type of watch. Other than the abovementioned major flaws, the actual workings of the watch look in good condition and I expect that it could be restored to its full working glory - I hope so as it is a beautiful looking watch. Many thanks for any pointers given.