Thanks
@Dan S and
@140dave. The website is extremely useful. I had help to remove the case back. Here’s what I’ve been able to find out so far.
It has a Moonwatch case back as opposed to pre-moon
Case back reference is 145022-76
Movement is calibre 861 with Delrin plastic brake
Serial number 39xxxxxx falls within the accepted range for reference
It’s in an asymmetric case which is correct for the reference
It has a domed ‘T’ dial which is correct for this reference
It has a DNN dropped serif bezel which is correct for this reference
The one issue I’ve found is the ‘S’ in Speedmaster on the dial extends the length of the ‘p’ which is correct for reference 145022-78 but not this 145022-76. I appreciate it won’t affect function but how big of an issue is this? I guess it will affect desirability and therefore value? Could Speedmaster101 be wrong about this as it seems many of the parts had crossover periods?
I couldn’t find information about the bracelet on speedmaster101 but did find a chart on this forum which indicates it’s correct for this watch with it being the 1171 version (not 1171-1) with 633 end links.
Well I’ve enjoyed an evening of investigating this beautiful watch but would still appreciate the thoughts and opinions of the forum experts.