What Sellita Movement is this?

[kd8tzc]

I'm trying to find documentation on an older watch that was my wife's Grandma's.  All I know is from what are in the pictures.  I did not see any markings indicating the movement number (possibly I just need to know where to look).

 

[RichardHarris123]

The markings are usually under the balance or dial. Can you get a better photo around the balance? 

[kd8tzc]

Okay, it was hard to see, but I believe it says 1240.  There also was something stamped near the edge of the case on the balance bridge.  I can't really make out what that says... possibly POF?

Is 1240 a valid movement as I don't see anything like that out there?

[RichardHarris123]

3 minutes ago, kd8tzc said:

Okay, it was hard to see, but I believe it says 1240.  There also was something stamped near the edge of the case on the balance bridge.  I can't really make out what that says... possibly POF?

Is 1240 a valid movement as I don't see anything like that out there?

 

[Nucejoe]

Sellita may have made this AS caliber, watchmakers could simply buy movements from makers of the movement such as AS etc.

Sellita used to assemble movements for movement makers.

Rgds

 

[kd8tzc]

Thank you!!  So who makes the AS movements?   I wonder how I could date the manufacture of it. 

I'd like to clean and lubricate it, but being that it was my wife's Gram's, I want to get may game up a bit.  Also, it is incredibly small (that says 19.8mm, but I think the movement is smaller) that I think I want a binocular microscope before I work on this.

I have a feeling they did not have tech sheets back in the 1940's or 1950's (I thought this was a 1960's watch so maybe??)

[RichardHarris123]

Google AS watch movement.