ORIS/SIRO Watches

Thread: ORIS/SIRO Watches

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  1. #1
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    ORIS/SIRO Watches

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Size:  66.5 KBI recently aquired these three Siro watches as a lot, couldn't find much about them until I removed the backs to find all the movements signed OWC and the small ladies case back signed ORIS WATCH COMPANY.

    Does anyone have any information on the company and specifically this type of watch regards age etc, I guess 1940's?
    the 'Dennison' type one runs for about 5-6 hours and the ladies (which needs a clean) is still running after 9 hours, the other 'military' lumed dial Gents does not run,I think the balance spring has gone.

    As a newbie I am still learning but guess they are all pin/lever movements and not too valuable, but they look nice and are in vgc in fact considering their age I think other 'better' makers could learn a thing or two especially in terms of dial finishing as these are almost mint.

    Thhe movements on both the gents are signed OWC CAL 296 SWISS MADE and the ladies is signed CAL 361 SWISS MADE but no OWC mark, this one appears to have at least 2 jewels.the other two perhaps just the one.
    Last edited by stefano34; April 17th, 2010 at 18:21.

  2. #2
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    Re: ORIS/SIRO Watches

    here are a few more pictures, all three have markings etched under the rim area of the case in the form of F 11+ for the round gents, F6 for the cushion case and E3 for the ladies one.
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  3. #3
    Member Marrick's Avatar
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    Re: ORIS/SIRO Watches

    I like those!

    As you say, excellent condition.

    See the post by Hartmut Richter in this thread:

    https://forums.watchuseek.com/showthr...highlight=oris
    Everybody is ignorant, only on different subjects."

    Will Rogers (1879 - 1935)


    Please don't PM me to ask for a valuation - I won't attempt one.

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  5. #4
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    Re: ORIS/SIRO Watches

    a few more pictures,
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  6. #5
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    Re: ORIS/SIRO Watches

    and a few of the ladies,
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  7. #6
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    Re: ORIS/SIRO Watches

    a couple of shots of the movements, this is the 296 fitted to both of the gents watches;
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  8. #7
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    Re: ORIS/SIRO Watches

    and the 361 (2 jewel?)fitted to the ladies SIRO/ORIS;
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    Last edited by stefano34; April 18th, 2010 at 02:20.

  9. #8
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    Re: ORIS/SIRO Watches

    Update on these, the 'Dennison' watch now runs for a good 12 hours plus, it wouldn't run right and when you wound it up it just kept winding and winding without ever getting 'tight' almost like the spring inside was slipping against itself?

    Anyway I decided to put the balance into the 'military' style round faced watch as this wound up ok...however the balance cocks are very, very slightly different and no matter what I did the wheel would not run when the cock was tightened down!
    So instead I put it back into the Dennison cased watch and took the good mainspring out of the military watch and put it into the Dennison cased one....result I now have one out of the two that not only works but keeps fairly good time!

    This is the first real bit of watch fixing I have done and it's been a success, to say I am happy is an understatment!
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  10. #9
    Member Eeeb's Avatar
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    Re: ORIS/SIRO Watches

    Congratulations. And thanks for sharing with us!!
    "Forever is composed of nows." - Emily Dickinson

    "The watch has to be surrounded by a history.
    You need more than just a great design. You need to create an atmosphere around the product.
    Who is the company behind it? Why are they using this material?
    People need to be able to identify the watch with themselves. It's based on emotion." - Ralph Furter

    ...that's just my opinion and I've been wrong before and will be again and might be now!

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