Hi Richard and welcome to YachtForums...
I'm sure there are others, but the first boat that came to mind with an on-deck master in the 55'-65' range is Nordhavn's 55'. Although the master stateroom windows are portholes on the Nordhavn, it certainly meets the seaworthy, trawler-type criteria. Here's a link to the YF review...
http://www.yachtforums.com/forums/no...5-trawler.html
If you can go up a few feet, Johnson's 87' Pilothouse offers an on-deck master with panoramic views over the bow. Big-boat features in a pocket size yacht (by today's standards!

) Here's a link on the Johnson 87' ...
http://www.yachtforums.com/forums/jo...ouse-87-a.html
I agree with your question and you've raised a good point. On deck masters, or atleast a room-with-a-view, should be mandatory. Much like common sense, if there was a place to purchase it, it should be required equipment.