This one has me mystified, so I'll throw it out to the panel. It came to me represented as new old stock, and condition would say that's true. The case (M8) is like a mirror and measures 27.3mm not counting the crown. It is tagged as an Aeronaut H 17 jewel stainless steel. No pics of movement, as I don't want to risk marking the perfect case. I find nothing in the database under the tag info and find no other configurations like this called anything else either. Box is also one I have never seen with this style of lettering. It is curious that the watch doesn't have a second hand and under magnification it is obvious it never had one. Whatsit?