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Novodiac Shock spring


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Does anyone know where a triangular Novodiac shock spring can be purchased? I'm in the middle of overhauling a Sicura Satellite watch and while I was trying to pull the lower balance jewel to clean and lubricate it, the spring pinged off into the ether!:pulling-hair-out: The movement is a Baumgartner, BFG 158 31/7. Thank you for the help.

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Think i have a couple of those. Saw one in a container i bought from cousisnuk .   With different shock springs . They can be good to have but as they are sorted you never know what you get . 

They are called Novodiac 221 if that makes it easier to find. 

Edited by rogart63
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Hi  When doing serious jobs with the liability of pinging parts it has been advocated doing it in a large plastic bag to limit the pingability of the parts. If the said parts ping they are still encapsulated in the bag and easier to locate. This applies to click springs as well that always look for an escape route.

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    • Hello and welcome from Leeds. 
    • Unfortunately I'm not that lucky. I started on the train side and after I noticed the binding I pulled everything out except the driving wheel to rule everything else out. It still binds. I'm going to double check that the pinion is fully seated on the staff first, then if no joy I'll push the bridge jewel up a fraction of a mm. Fingers crossed!
    • Happy to have helped, great way to start the day with a win! 🥳
    • Thank you for the advise!! It worked. The setting screw was a lock/unlock to remove the rotor. 
    • I have that French tech sheet too, it is a little different than the English one (eg, it doesn't have the auto works diagram). BTW, it looks like you are looking up the case number in the 1979 ABC supplement. The 1974 ABC catalog does have the 3093 case. As you determined it takes the 1222-5 crystal.  When I serviced my President 'A' (which also takes that crystal), I was able to fit a 29.8 crystal from my DPA crystal assortment. Those are, in my opinion, a great deal. The assortment comes with 10 sizes each from 27.8mm to 32.4mm in 0.2 increments. I pretty much use them for any non-armored crystal that takes a high dome crystal. I think they no longer make them but Cousins has still has some in stock but when I bought them they were around $40 for the set and now they are around $100. Still, at 40 cents a crystal it's still a good deal. For the large driving wheel, I remember I once assembled the keyless/motion works first and when I placed the large driving wheel it was interfering with the setting wheel on the dial side as the teeth were not fully meshing and it wouldn't fully seat. If that isn't the issue I got nothing and am looking forward to see how you solve it 🙂
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