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Movement identification


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Hi

I got this watch in a job lot but I’ve been unable to identify the movement. The only numbers are 411.7 on the plate and 7 under the balance. I like the look of the watch so would like to repair it. Any help identifying the movement would be appreciated.

An opinion on the dial would also be appreciated, the crown and lettering look ok to me but I’m certainly no expert. There are service dates on the dial and case but I can only really make out one which is in 1944.

thanks

 

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https://www.mediafire.com/file/mz809lm3bms8zk3/bestfit_part1.pdf/file        and         https://www.mediafire.com/file/eqbhdor949r0ilp/bestfit_part2.pdf/file         Find attasched the links supplied by Old Hippy for the Bestfit books  Vol  l  and ll     you need the password TICKANDTOCK  to gain entry. If you look in the movement identification section it mat give you an answer.  These books are in valuable when looking for movment Id especially the older movements.

 

 

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To narrow down your search one should start by looking at the keyless work, it has a strong resemblance with an AS 340, I would think this is a version of a movement in that family with a slightly modified train bridge.

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As said before your trainbridge is modified but the one doing it left the holes for the original bridges. I would not think it was factory done then the watchmaker would have thought about a detail like that and covered them up, I know I would.
The escape wheel is not in place so that adds to the different look to.

AS340.png.84b05fa4d9332d33a961bcba6f5ff8e5.png


In the 20's - 30's there were lots of experiments going on, the only AS movement I noticed being used was the AS340 in a ROLEX Marconi jump hour, there are probably more of them but haven't seen some official list.
Here is a site with cool quirky watches like the Rolex Marconi.
http://www.crazywatches.pl/rolex-marconi-jump-hour-as340-1920s

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    • 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 🙂
    • Not sure, but just looking at it, it seems like the screw on the right may be a fake? The one on the left may not be a screw in the regular sense at all, rather a 2 position device, I think you need to point the slot towards either of the 2 dots and one will secure and one will open. Like I said this is just my best guess looking at the pictures.
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