Rotary Movement Help ?

[RedJim]

Hi All, Just after a bit of advice on a new find this week. Its a Rotary 1971 from the hallmarks on the gold case. Been trying to identify the movement on Ranft and trying to find a similar example but I'm struggling. Its a non runner at the moment so I'll need to strip it down so it would be useful to know what the movement is and if there is any reference material i can use. I've attached some pics if anyone can help or point me in the righat direction. Many Thanks.

[WatchMaker]

I can tell from the distinctive auto-mind mechanism that this is an A.Schild (AS) movement.

Probably something from this family: http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&AS_1983

Look under the balance wheel more closely and you should see an AS symbol. Can you also see a number?

[RedJim]

52 minutes ago, WatchMaker said:

I can tell from the distinctive auto-mind mechanism that this is an A.Schild (AS) movement.

Probably something from this family: http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&AS_1983

Look under the balance wheel more closely and you should see an AS symbol. Can you also see a number?

 

53 minutes ago, WatchMaker said:

I can tell from the distinctive auto-mind mechanism that this is an A.Schild (AS) movement.

Probably something from this family: http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&AS_1983

Look under the balance wheel more closely and you should see an AS symbol. Can you also see a number?

 

[RedJim]

Thanks for that info, I'll take a look. I haven't got to disassemly yet, next weeks work thank you.

[Nucejoe]

Watchmaker is right, further AS1883 and AS1983 look similar only date set mechs are different. 

Check the caliber, its under balance wheel and can be seen prior to disassembly.

[JohnR725]

fortunately the photograph is almost good enough that we get a mystery?  Definitely see the shield from as  and  it's really really fuzzy but it looks like it's a number ending in 82/83? 

[Nucejoe]

So its AS1883  ,  it has date complication.

[RedJim]

11 hours ago, Nucejoe said:

So its AS1883  ,  it has date complication.

Thank you all.

[RedJim]

Where would I get replacement screws for the movement, there are three I spotted highlighted in the attached pic, Ratchet wheel and  two case screws. Noticed Cousins have a selection, do you think they would do the job? Or should I be ordering specific screws etc..

[RedJim]

20 minutes ago, RedJim said:

Where would I get replacement screws for the movement, there are three I spotted highlighted in the attached pic, Ratchet wheel and  two case screws. Noticed Cousins have a selection, do you think they would do the job? Or should I be ordering specific screws etc..

I think I've located the missing Ratchet Wheel Screw in the movement stopping it working. Thanks again.

[hpekala]

Ratchet wheel screw was jamming balance, it shows in picture 3 ?


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[RedJim]

25 minutes ago, hpekala said:

Ratchet wheel screw was jamming balance, it shows in picture 3 ?


Sent from my iPhone using Tapatalk

Thanks, I need to look closer in future, thanks for your help.

[RedJim]

On 9/19/2020 at 10:08 PM, RedJim said:

Thanks, I need to look closer in future, thanks for your help.

Just to update the group, I retrieved the ratchet wheel screw and got it ticking. I can set the time but the winder stem is very stiff and I cant set the date which I belive is done by pulling the crown half out. I'll have to do a bit more work and remove and clean the stem etc. but thanks for the help so far.