Omega 861 Movement ID: Real or Cal. 864?

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Not great photos but between it being marked as 17 Jewels and having the different coloured wheels and rhodium plating I'd say Cal 864 which was a more decorated chronometer-rated version of the Cal 861
 
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from the reaserch ive done the 864 should have
"CHRONOMETER - ADJUSTED TO FIVE (5) POSITIONS" prominently highlighted in gold text, only then would it be an 864. ??
this only has "OMEGA SWISS - SEVENTEEN 17 JEWELS - 861" written in standard, simple engraving,
so may be a Caliber 861L ?
 
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35,136
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from the reaserch ive done the 864 should have
"CHRONOMETER - ADJUSTED TO FIVE (5) POSITIONS" prominently highlighted in gold text, only then would it be an 864. ??
this only has "OMEGA SWISS - SEVENTEEN 17 JEWELS - 861" written in standard, simple engraving,
so may be a Caliber 861L ?
Yea I thought that too but looking around there seem to be a lot of Cal 864s with unadjusted around too

https://www.casowatches.com/catalogo/speedmaster-3592-30-white-gold-limited-edition/

 
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ok thanks seems like its legit
from what I've researched these movements were only fitted to the apollo XI
25th anniversary edition Le in 18K white gold
I've had a better look at mine & its 100% stamped 864 totally shocked as it was not what I was expecting when I opened the watch