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Thread: Which dive watches use ETA 255.461 movement?

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    Master danmiddle2's Avatar
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    Which dive watches use ETA 255.461 movement?

    Does anyone know how I can find out which watches, specifically dive watches, came with a ETA 255.461 out of the factory?

    I also understand that this is essentially the same as a the Omega 1538?

  2. #2
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    The quartz ďBondĒ Omega Seamaster is the only model I can see commonly referenced.

    Dave

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    There is a few versions of the same movement:

    http://www.ranfft.de/cgi-bin/bidfun-...TA-ESA_255_461

    Might be worth plugging all the variations into google.

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    Possibly the Certina Precidrive it seems.

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    Master danmiddle2's Avatar
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    Thanks, I'll check it out.

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    Master danmiddle2's Avatar
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    Quote Originally Posted by Dave O'Sullivan View Post
    Possibly the Certina Precidrive it seems.
    Hi Dave, have you got any more details? All I can see are references to ETA F07.41, but there might be different versions https://www.anytimewatches.com/en/ce...11-091-00.html

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    It was an old post on WUS I found through google so possible duff info. There is a website that lists a load of calibres then lists watches that use it but I can't for the life of me remember the name.

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    Remembered it! Watch Base. However, itís drawn a blank as it only shows two Omega movements that are based on the ETA.

    http://watchbase.com/eta/caliber/255-461

  9. #9
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    Can't help at all, but I'm really curious about why you're asking this question. Planning a collection of watches all with the same movement?


    Sent from my iPhone using TZ-UK mobile app

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    Master danmiddle2's Avatar
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    Quote Originally Posted by Valkyrie View Post
    Can't help at all, but I'm really curious about why you're asking this question. Planning a collection of watches all with the same movement?


    Sent from my iPhone using TZ-UK mobile app
    I'm not planning on a collection of watches with the same movement, no. :-)

    As per another thread, I have oil filled a couple of Quartz SMP's. These have worked successfully for over 3.5 years since being filled with oil (where other quartz watches have failed after the same treatment). These are powered by the Omega 1538 movement, which is basically a dressed up ETA 255.461.

    A few friends and colleagues have expressed interest in having an oil filled watch, so I was hoping to find a suitable (inexpensive) candidate that I could recommend and convert for them. Given the 1538 has proved to be a strong movement in this respect, finding something with basically the same movement seemed like a good place to start.

    The quartz SMP is out of production now, and used ones are commanding a much higher price than they were 3.5 years ago.

    I hope that addresses your curiosity.

  11. #11
    Master danmiddle2's Avatar
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    Quote Originally Posted by Dave O'Sullivan View Post
    Remembered it! Watch Base. However, itís drawn a blank as it only shows two Omega movements that are based on the ETA.

    http://watchbase.com/eta/caliber/255-461
    Sorry I missed this post, but seen it now. Thank-you!

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    Quote Originally Posted by danmiddle2 View Post
    I'm not planning on a collection of watches with the same movement, no. :-)

    As per another thread, I have oil filled a couple of Quartz SMP's. These have worked successfully for over 3.5 years since being filled with oil (where other quartz watches have failed after the same treatment). These are powered by the Omega 1538 movement, which is basically a dressed up ETA 255.461.

    A few friends and colleagues have expressed interest in having an oil filled watch, so I was hoping to find a suitable (inexpensive) candidate that I could recommend and convert for them. Given the 1538 has proved to be a strong movement in this respect, finding something with basically the same movement seemed like a good place to start.

    The quartz SMP is out of production now, and used ones are commanding a much higher price than they were 3.5 years ago.

    I hope that addresses your curiosity.
    Excuse my ignorance but what exactly do you mean by 'oil filled'?
    Thanks.


    Sent from my iPhone using TZ-UK mobile app

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    Quote Originally Posted by Ogdensnut View Post
    Excuse my ignorance but what exactly do you mean by 'oil filled'?
    Thanks.
    I'm sure Dan will come along at some point and give a fuller explanation. In the meantime, he does mean the watch is literally filled with oil, as per this thread of his:-

    http://forum.tz-uk.com/showthread.ph...lled-Omega-SMP

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    Quote Originally Posted by RickS View Post
    I'm sure Dan will come along at some point and give a fuller explanation. In the meantime, he does mean the watch is literally filled with oil, as per this thread of his:-

    http://forum.tz-uk.com/showthread.ph...lled-Omega-SMP
    Thanks!!


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    Master danmiddle2's Avatar
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    Quote Originally Posted by RickS View Post
    I'm sure Dan will come along at some point and give a fuller explanation. In the meantime, he does mean the watch is literally filled with oil, as per this thread of his:-

    http://forum.tz-uk.com/showthread.ph...lled-Omega-SMP
    Not much to add to that really, but yes...

    step one, open watch (and replace battery)
    step two, submerge in oil (actually a fluorinated hydrocarbon called Fluorinert)
    step three, place in a de-gas vacuum chamber to suck out all air, even the little bubbles
    step four, re-attach the caseback whilst still submerged (whilst adding something to compensate for thermal expansion)
    step five, sit back and admire your handywork

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