Nice photos Jeff, but I have to confess what really struck me with these close ups was what a crappy job Heuer did with the "Heuer" text within the shield on these black Montreals.

Not wishing to demean your specific watch, I went away and checked some photos (and Arno's book) and this lack of detail and somewhat clumsy finishing seems endemic to the black (and to a lesser extent, the blue) Montreals. At the time of the first generation Carrera, we should all be fairly used to the black paint on silver dials having much more detail and finesse in terms of serifs etc than the white paint on black dials, but I thought they'd had this sorted by the time the Montreals went on sale.

Check this '74-on Carrera for instance, black dial but with a good amount of detail in the white paint:

And I would have thought a barrel-cased Carrera would have made a good template for a Montreal, but somewhere down the line the standards seemed to have slipped a bit. Sure the Montreal is a big watch, but is the shield scaled up that much? Don't have a Montreal to compare to a Carrera but the shield doesn't look that much bigger in photos.