. . . "Wristwatches" authored by Halmut Kahlert, Richard Mühle, and Gisbert Brunner on page 350; on the following page are photos of the 1948 Omega observatory tourbillon that was similarly cased in the 80s, and which I had the immense pleasure of viewing in the metal at Omegamania two years ago. I'm not sure that I'd want to own either of these masterpieces, Andrew, but they would both be on my list of the ten most desirable watches of all time . . . cordially, Art