All pieces are spectacular, but I am especially astonished about the nicely stamped Monopusher caseback. I always had thought they were made only with the displayback. Oh, I just looked up my references: so your piece is one of the 175 made for the 150th anniversary in 1996? I was not sure they did really exist, since I never saw one, only the later version. Nice to see Mr. Nardin's portrait on a watch!
Regards,
Marcus