Glas kontra metal

[willy]

If they can put glass on the front and make it water tight why not on the back? If Patek or AP etc etc had thought about glass backs 100 years ago this discussion would not be taking place.I mean who wants to see a oil painting behind a sceen.Its a great thing to be able to see a great caliber everyday.But with some watches it is a waste of glass <!-- s:lol: --><img src="{SMILIES_PATH}/icon_lol.gif" alt=":lol:" title="Laughing" /><!-- s:lol: --> <!-- s:lol: --><img src="{SMILIES_PATH}/icon_lol.gif" alt=":lol:" title="Laughing" /><!-- s:lol: --> Willy