Great write up on the Speedmaster, Pete
I think you may actually mean the 145.012, which followed the 105.012, though.
I'm with you all the way on the appreciation of the Speedy - so much so, that I own a couple, although neither from my birth year - I'm somewhere in-between; a '67 145.012 and an '85 145.022.
Must do a write up on those myself, one of these days!