Community Stories

Help I.D this movement please. circa 1947

mac_omega
Posts
3,414
Likes
7,322
unfortunately no entry in the Omega database for this reference 2395...

Seems to have a Cal 28 (later 360) and watch looks all original.

Hope this is of some help
 
mac_omega
Posts
3,414
Likes
7,322
Canuck Canuck
Looks like this image from Dr. Roland Ranfft's movement archive. Calibre 265?
image.jpg

http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&&2uswk&Omega_265
No, it is definitely not a cal. 265! it is a cal. 28 or 360 (as it was called later with new Omega movement nomenclature) as I already stated in my first reply.

Look a bit more closely - the bridges are different - and compare ratchet and crown wheels...

And there is a much wider bevel on the edge of the movement!
 
Geordie
Posts
216
Likes
100
The watch is running about a minute fast a day do I move the adjuster to the A or the R thanks again
 
mac_omega
Posts
3,414
Likes
7,322
Canuck Canuck
I hope I didn't appear to be contradicting what you said. Having looked at the two images again, I don't see the differences you are referring to. But anyway, let's call you correct, and me wrong!

http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&&2uswk&Omega_28

The Omega 28 (according to the Ranfft archive) has an indirect sweep seconds feature.

Firstly I want to say that I do not make statements just for being right... and I do not like to blame others to be wrong...

But as you don´t believe me I want to show you how many more differences there are between the 2 movements - I have mounted the 2 pictures side by side in the same orientation and have marked the differences of cal. 28 (360) with red arrows:

comparison.jpg



1) different position of the click
2) ratchet and crown wheels have a bevel on the edge and polished teeth in this area
3) different movement holding screws (domed vs flat at the Cal. 30 family movements) plus other position to one of the bridge screws
4) different position of the serial number
5) different angle at this point of the bridge
6) different position of these 3 jewels
7) no shock protector
8) much wider bevel on the edge of the movement

Are these enough differences?
 
hoipolloi
Posts
3,679
Likes
6,224
Canuck Canuck
I hope I didn't appear to be contradicting what you said. Having looked at the two images again, I don't see the differences you are referring to. But anyway, let's call you correct, and me wrong!

http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&&2uswk&Omega_28

The Omega 28 (according to the Ranfft archive) has an indirect sweep seconds feature.
That's a 28 SC version.
I have one like that here it is
2015-06-23_02-54-00.jpg
 
gatorcpa
Posts
12,772
Likes
17,320
Geordie Geordie
The watch is running about a minute fast a day do I move the adjuster to the A or the R thanks again
A = Advance = Fast

R = Retard = Slow

If it's running a minute fast, then using a toothpick (or other non-metallic object) move the pointer slightly towards "R" to slow it down.

However, from the pictures, it looks as if the watch hasn't been serviced in some time.

Might want to consider that before running it too often.
gatorcpa
 
Canuck
Posts
14,596
Likes
42,280
I see now there is a vast difference between the two movements. Thanks for pointing them out. Regarding my original post, please note I placed a question mark after the number 265.
 
dennisthemenace
Posts
2,828
Likes
4,717
Geordie Geordie
Very close mate.mine is 17 jewels where that one is 15
Thanks for that.
well it says 17 on the movement. Where do you see 15?
 
P
Posts
33
Likes
4
Geordie Geordie
looked on database but cant find it. think its circa 1947.
I inherited some watches link below I have identified the newer ones but I'm struggling with the older ones.
https://omegaforums.net/threads/omega-speedmaster-tv-screen-info-request.26492/
The one pictured here is particularly difficult for a novice like me.
IMG_4222.JPG IMG_4223.JPG IMG_4224.JPG
Geordie Geordie
looked on database but cant find it. think its circa 1947.
I inherited some watches link below I have identified the newer ones but I'm struggling with the older ones.
https://omegaforums.net/threads/omega-speedmaster-tv-screen-info-request.26492/
The one pictured here is particularly difficult for a novice like me.
IMG_4222.JPG IMG_4223.JPG IMG_4224.JPG
Geordie Geordie
looked on database but cant find it. think its circa 1947.
I inherited some watches link below I have identified the newer ones but I'm struggling with the older ones.
https://omegaforums.net/threads/omega-speedmaster-tv-screen-info-request.26492/
The one pictured here is particularly difficult for a novice like me.
IMG_4222.JPG IMG_4223.JPG IMG_4224.JPG
 
P
Posts
33
Likes
4
The 28 cal has a bevel around the edge of the movement. It isalso 28mm.
 
Sign up or log in to reply...

Similar threads

MalcolmUK

what balance is needed for this movement please

MalcolmUK Vintage Omega Watches Help, Discussion and Advice
JimInOz
JimInOz
Posts
5
Views
1K
Demonfinder

Can any Cyma fans help me find details about this movement please?

Demonfinder Other Watch Brands Forum
Canuck
Canuck
Posts
7
Views
3K