I received this beauty in the mail this week, and considering I was the only bidder, I guess most people don't know about Royal Orient, which was the "Grand Seiko" of Seiko's biggest competitor. Research showed me this was from the first release of Royal Orient hand-winders dating 1958 to around 1961 or so. I haven't opened it yet to check the movement serial number, which should tell me more. Some were adjusted in 5 positions, and there were "N" type movements and sometimes "R" type apparently.
My vintage collection has been growing a bit lately, with more Vympel 2209 ultra-thins and a beautiful GuB Spezimatic this year, but this one has a bit of extra joy, because it was one of those sleepers we occasionally risk from those eBay auctions with bad photography. I got lucky and I thought I might share:
While researching I found a different seller post this page from the book "Japan Domestic Watch Volume 11"