Jump to content

Omega Calibre 612


Recommended Posts

Hello

Does anyone have any info on this movement? It seems that there are not much info out there on the web about it. Can find lots of info on the 613 but not the 12.

So far this is what I have found

It is a manual winding movement, 12 1/2 lignes in size, has a date function, 17 jewels, 38 hour power reserve, beats at 19,800 A/hr

I am very curious as to the years of production and what models and case numbers it was used in.

Any info would be greatly appreciated.

Daniel

post-960-0-17618400-1429907758.jpg

Link to comment
Share on other sites

From my knowledge the Cal 612 was produced from 1959 to 1966 , the exact quantity is not known but can range from 100,000 to 330,000 units per year over a 6-7 year period, how many of the 612 were made, Omega never noted.

 

Although not as commonly found the 612 shares pretty much the same construction as the 613, infact i don't even recall if there is a difference at all. They likely discontinued the use of the caliber # as they may have wanted to use 613 designation in its place and saw no need to have a cal 612.

 

Going only from memory i believe the 612 was used in Ladies Geneve & DeVille models as well as a handful of others, although exact watches i could not tell you as most were then used with cal 613 or similar.

 

Not much more i can tell you but i hope it helps a little. Slightly rarer but i don't think any more valuable than a 613 :)

Link to comment
Share on other sites

Thanks for the info. I figured it was from about that timeframe.

Here are a few more pics of the watch. i would love to get some feedback on what you guys think of it.

The movement looks 100% real to me but the case has me thinking that it has been recased at some point. There are no markings on the case that I can find. The only markings are on the case back. I'll post a pic of that.

Recase or not I love the watch. My friends jokingly call me Don Draper when I wear it. :) and it keeps time as good as every new eta movement that I have.

post-960-0-33404900-1430159800_thumb.jpg

post-960-0-87907400-1430159814_thumb.jpg

post-960-0-23327100-1430159831_thumb.jpg

post-960-0-95809500-1430159849_thumb.jpg

post-960-0-15619600-1430159871_thumb.jpg

Link to comment
Share on other sites

The serial number dates it to 1970 , but i would think it has been re-cased as i can't find that case number at the moment relating to a seamaster and there is no seamaster logo on the case back so it is possibly a fraken but will do a bit more looking .

edit looks to be a Geneve case from c1967 which housed a 613 calibre so it is possibly a redial with a seamaster dial

Edited by Andyclient
Link to comment
Share on other sites

That's how I feel about it. I like the look. It will get use. And considering what my wife paid for it, what a steal.

That's the main thing you like it will wear it and enjoy it, that's what it's all about in the end

It's a nice looking watch and if it was a bargain even better

Link to comment
Share on other sites

I am wondering if I should source an original geneve dial and put it back to what it should look like.

I like thevwaybitblooks but I would hate to be called out on it by someone who knows watches. I wouldn't want anyone to think I was trying to pass off a fake.

Maybe I am just being overly sensitive.

What to you guys think? I am not looking to increase the value of of the watch. And I don't sell my watches. I keep and whear them. So it would be only for me.

maybe I'm just being silly.

Link to comment
Share on other sites

Frankly, I wouldn't bust a gut over it. If you like the way it looks, feels and runs, then just enjoy it.

 

It looks fine to me - it's not every day I run into a pub and say, "Hi guys - let's compare Omegas!" :D

 

Cheers,

 

Will

Link to comment
Share on other sites

I am wondering if I should source an original geneve dial and put it back to what it should look like.

I like thevwaybitblooks but I would hate to be called out on it by someone who knows watches. I wouldn't want anyone to think I was trying to pass off a fake.

Maybe I am just being overly sensitive.

What to you guys think? I am not looking to increase the value of of the watch. And I don't sell my watches. I keep and whear them. So it would be only for me.

maybe I'm just being silly.

Or a seamaster case. :-). I would keep as is. Be proud if it.
Link to comment
Share on other sites

Its about how the watch makes you feel, if you enjoy it then it matters not a dot what anyone else thinks :)

 

Personally i like it ( and i am a big omega fan ), and if it keeps good time then all the better. The original watch may be long gone but even trying to replicate it would still not make it original so enjoy the watch as it is, theres nothing wrong with a re-case if it means a decent movement can live on :)

  • Like 1
Link to comment
Share on other sites

Its about how the watch makes you feel, if you enjoy it then it matters not a dot what anyone else thinks :)

Personally i like it ( and i am a big omega fan ), and if it keeps good time then all the better. The original watch may be long gone but even trying to replicate it would still not make it original so enjoy the watch as it is, theres nothing wrong with a re-case if it means a decent movement can live on :)

Spot on , totally agree
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.



  • Recently Browsing

    • No registered users viewing this page.
  • Topics

  • Posts

    • Ok, with the parts You have, the easiest thing to do is vibrate a new hairspring, of cousre for 16800 BPH. A couple of balance screws will be not enough, at least 3-4 aditional couples will be needed. And this if You have that many free holes. And cutting 75 teeth table for the contrate wheel is the other reasonable option Different things may have happened to the clock - the contrate wheel may have be replaced from another modification, the platform may not be original, the hairspring may have been replaced and vibrated for 18000 or the entire balance may have been replaced wit the wrong one...
    • I also agree with @mikepilk and @Waggy. Your readings look good. The amplitude drop between the horizontal postion and the vertical position is nice and low (only 18° difference).  The delta of 17 sec (-3 to +14) between those positions is absolutely ok. If you really wanted to improve on this, I think you'd have to look into the poising of the balance wheel (not the spring, which looks perfect). But that's a total overkill for this kind of movement. Leave it be.
    • I've just finished refurbishing a Memostar Alarm with AS 1931 movement (same as 1945 but with date and running at 21600). I was also surprised how many parts are available at Cousins. Like you, I was missing the alarm stem (Cousins stock them) and I needed new crowns. It's a nice simple movement for an alarm, easier to service than a Seiko Bell-Matic. BTW I made a note in my Servicing spreadsheet: "Pull out winding stem before removal".  It may have just been wear on my movement, but I found that the yoke could move out of the clutch if the stem was removed in the normal position (like some ETAs).  You might find this interesting     
    • I picked up this alarm watch at a flea market several months ago and recently decided to investigate.  I am not finished, but well on my way. As you can see, there was significant water damage.  Running these parts through my L&R cleaner was not enough to clean them, so I did manual cleaning with one-dip and cotton swab (the dense pointed kind).  The wig-wag was stubborn--the two gears would not release from the plate.  I soaked it in Kroil overnight and that did the trick. There was some rust on the balance staff, but not actually on the pivots themselves.  Nevertheless, I chucked it a step-chuck on my lathe and burnished the pivots. The watch is running and I have confirmed that the alarm drive train is functioning.  Since I am missing a stem for the alarm, I have not done the final assemble of the alarm components.  Surprisingly, there are lots of parts available for this movement on Cousins.  I will probably get a couple of stems and maybe some other parts that I deem necessary. The watch is running at weak amplitude (about 190) and shows some poising issues.  I will work on that. The last two pictures are after partial reassembly.    
    • Hello and welcome to the forum.    Enjoy
×
×
  • Create New...