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Great resource with Omega Movement drawings (321, 861, etc.)

Aludic
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Hi all,

Whilst previously discussed in 2014 (https://omegaforums.net/threads/cool-speedy-info-reference-site.19371/), I just happened to stumble upon the speedywatch.com website after searching Google for Omega Movement drawings.

Turns out this site has many of them. Geeky, interesting and IMHO an absolutely great resource for more detailed Omega movement information. I thought it was worth sharing, so here you go: http://www.speedywatches.com/documents/movements/

Screen Shot 2020-02-12 at 21.23.47.png


Hope this is useful and interesting to others too!

Cheers,
Edited:
 
Radiozoop
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This website is great, what a wealth of information. Definitely useful when my 321 comes up for service... I really don't want to resort to sending it out to Omega out of fear they'll ruin the "patina," so maybe with info like this my watchmaker can make it happen.

Thanks for sharing!
 
Aludic
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Hi @Radiozoop

Glad you like it. I think any skilled watchmaker probably knows these movements as they are fairly common, so I wouldn't worry about that too much. Still, I thought is an interesting set of drawings for non-watchmaking enthusiasts. 😀
 
DaveK
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Radiozoop Radiozoop
This website is great, what a wealth of information. Definitely useful when my 321 comes up for service... I really don't want to resort to sending it out to Omega out of fear they'll ruin the "patina," so maybe with info like this my watchmaker can make it happen.

Thanks for sharing!
I have some old biology books if your surgeon needs them 😉
 
southtexas
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Hello all, reviving an old thread. Does a schematic exist showing the other side of a 321 movement with more part numbers? I'm trying to determine exactly where part 321-1758A belongs in a 321 movement. My watchmaker called it a Zero Action Pusher Stem. Here are pics of the part. My movement is a 17mil serial. Thanks in advance.

Omega Part 321.1758A zero action pusher stem (back) .webp Omega Part 321.1758A zero action pusher stem (front) .webp
 
Archer
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It’s the pusher stem for zero action. It goes sort of between the movement and the pusher. That version is likely for a Seamaster case, as the Speedmaster versions are a different design.
 
southtexas
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Archer Archer
It’s the pusher stem for zero action. It goes sort of between the movement and the pusher. That version is likely for a Seamaster case, as the Speedmaster versions are a different design.
thank you. Is it a "push to fit" part, or is it held in by another part/screw? In short, if I'm fairly comfortable dabbling with these parts and have the necessary tools, should I give it a try, or is it something a watchmaker needs to handle? Thanks again for your insight.
 
Archer
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The slot in the part you see mates with the hour hammer operating lever, so installing this requires that the movement is removed from the case.
 
southtexas
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It is a loose movement and the part was noticed floating in the plastic case.


IMG_6283.webp
 
Archer
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This to me would indicate that the movement is from a Seamaster. If you are using it for a Speedmaster, you will need the other design.
 
southtexas
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Archer Archer
This to me would indicate that the movement is from a Seamaster. If you are using it for a Speedmaster, you will need the other design.
Sorry for any confusion I may have caused. As I’ve mentioned, I'm not attempting to install the movement into a seamaster or speedmaster, I'm simply trying to put the loose part back into the loose movement. I thought I might give it a try myself, hence my question.
 
Archer
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southtexas southtexas
Sorry for any confusion I may have caused. As I’ve mentioned, I'm not attempting to install the movement into a seamaster or speedmaster, I'm simply trying to put the loose part back into the loose movement. I thought I might give it a try myself, hence my question.
It really only stays in place properly when the whole watch is assembled…
 
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