Years ago I collected as many photos as I could of them, there are at least 3-4 of them floating around which means there are likely many more nobody knows about, its a CH27 with a bumper automatic winding system installed, apparently its actually a quite decent execution but Lemania / SSIH group saw no demand for it in the market and never put it into serial production.
Its actually a pretty amazing thing to look at, most of the early automatic chronographs are ugly, especially the Calibre 11 and the Seiko, this Lemania from over 20 years earlier actually looks more beautiful if that were even possible, imagine having one of these with a display back?
The Ch27 family has always had that sort of mystique and prestige surrounding it for collectors due to its staggering longevity and use of the design in everything from the most desirable Speedmasters to modern Pateks like the 5970, things like beating the world in automatic chronographs by over two decades only really adds to that.
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