. . . without the centerfold, right? Ok, I'll see what I can dredge up from our files. Here's a cal 49 movement that forms the base for the perpetual under discussion . . .
. . . and a cal 42 that resides in Zhiming's Karree perpetual:
It's hard to believe that manufacture movements of this quality were available in the four-figure list price range. These were some of the best values in contemporary watchmaking . . . cordially, Art