Comments:
Hmmmm, Can some one explain where 'Mk40' came from - it's a ref 3520 or 3820.53 ?
And AFAIK it was never a Schumacher watch when it was originally marketed (1998?) - pretty sure my memory is right as if it had been, I would not have gone near it.
I rejected it when I found I couldnt read the chrono scale clearly and quickly and then learned it had a 7750 and so simply got the proper Speedmaster, the 3570 with Hesalite.
Ah 20 years flashed by.
Velociphile
I recall them being commonly distributed at Omega's . . .
. . . retail outlets in the late '90s - early '00s. In the absence of the cult the Pro was about to develop around the same time frame, my hunch is that Omega issued this reference simply because the movement was in common use by other manufacturers. Why give up sales to Dubey & Schaldenbrand?
There was another 7750-based Speedmaster produced in the same time frame; I believe Nilo's owned two, at different times.
[Ω ref 3540.30.00, ca '04 / watch & photo credit: Nilo]
These were notable for more than a few reasons: exceptional size (44 mm, if memory serves correct), value (possibly the least costly rattrapante ever), scarcity, and notably, rubberized racing straps that translated fluently on mundane Speedy Pros.
[photo credit: google search]
The movements were reputedly cantankerous; can't speak from personal experience, perhaps Nilo can fill us in. But they were decidedly cool watches.
Art