I 've an antique pilot swtch too.
But I don't known what swtch mark of swiss.
I hope someone tell me, Thanks a lot!
http://www.watchbus.com/modules.php?name=coppermine&file=displayimage&album=lastup&cat=&pos=2
http://www.watchbus.com/modules.php?name=coppermine&file=displayimage&album=lastup&cat=&pos=3
http://www.watchbus.com/modules.php?name=coppermine&file=displayimage&album=lastup&cat=&pos=1