Hy,

I found speedmaster 145.022-76 that has 45mio serial number. I have checked on "spedmaster101" and for 44mio serial case should be 145.022-78.

I am looking for some advice/help if this is OK. Thank you

Here are some pictures so you can see:

 

It has the later dial variant, so that + the movement serial could mean it was produced towards the end of -76 production. I don't have my copy of MWO in front of me at the moment though, so I could be wrong.

 

Bumping this up - anyone have their copy of MWO with them right now, and can take a quick look at 145.022-76 serial number ranges? Trying to get to the bottom of this but I've just gotten into work here in New York and can't figure this out until later on

 

I keep a spreadsheet with Speedmaster serials. Unverified are in standard font, extract-verified in blue font. 44's and 45's are all over the place in this spreadsheet--1980 to 1986--but there is a 44,819 with extract from 1980. And, for what it's worth, a verified 39,923 from 1977.

 

Thanks! Yeah, the -76s I've seen have all been in the 39m range, with 44-45 being mid-1980s as you suggest. I think -76 production ended in 1978 or early 1979 though, no?

 

Years and movement numbers are notoriously inconsistent. I have a 31m movement that the omega extract says is from a 76 watch and yes it is in a 76. Go figure.......

 

To muddy the waters, I have seen 44m and 48m in speedmasters 71 and earlier. When asked, Omega will not issue an extract, BUT they say there was a period when watches sent for service were given exchange movements from these ranges.

For me -78's are seen with up to 44m. But I have not done the extract list like @wsfarrell which sounds like an interesting read to a nerd like me!

I updated the 70's page:

http://speedmaster101.com/145-022/145-022-71-74-76-78/

 

Interesting......Could that have happened to the movement in my 76....they replaced the original movement with a 31m movement as a replacement. Although they did give an extract based on the movement number alone and gave the 76 year watch that it is in.

 

I have a -74 with a 31.00M movement too, and am currently waiting on the Extract but wanted to be sure. I know that years and movement numbers are inconsistent, but 31.00 is pretty early.

I don't think movements would have been replaced by earlier serial numbers - I think it's more likely that you'd find later serials like the ever-popular 44M installed in older watches.

 

Agree makes more sense to have replacement movements with higher numbers. Somewhat reassured to hear others have such early numbered movements in mid 70's watches.