I knew about this watch for a long time, but it was nearly impossible to find. I believe there are only six https://www.rmwx.co.uk/Collection/rm-88/ pieces known, he says. "But this example was coming from a vintage auction in https://www.rmwx.co.uk/Collection/rm-05/ Japan about 10 https://www.iwcx.co.uk/Collection/ingenieur/ years ago and I immediately grabbed it. I believe this watch was delivered to Japan and I'm probably only the second owner."