Teardown: HMT Sona
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  1. #1
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    Teardown: HMT Sona

    I've taken apart my HMT Sona and taken some photos - if you are interested.

    Review: HMT Sona | Watch Guy

    For the money it costs, a great watch!
    zippofan, ALAMO, Remior and 1 others like this.

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    Member fatehbajwa's Avatar
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    The movement in the Sona is common to most if not all hand wound HMT'S . I find them to be very robust and see lots of watches which have not been used for ages, spring to life with a simple cleaning/service.

    Thanks for the tear down. The close up pictures are awesome.


    Sent from my iPad using Tapatalk

  3. #3
    TGE
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    Re: Teardown: HMT Sona

    Very interesting, thank you.

    And I agree, cool close-ups. That one focused on the pinion on the escapement wheel is great.
    Regards,
    Tim

    "The Dude abides. I don't know about you but I take comfort in that. It's good knowin' he's out there. The Dude. Takin' 'er easy for all us sinners. Shoosh. I sure hope he makes the finals." - The Stranger

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    Re: Teardown: HMT Sona

    Great photos! Too bad about the barrel screw. Whit a nice little movement that is inside. It gives me a new appreciation of my little Janata (thanks to Fateh, in fact!)
    Too many watches, not enough wrists.

    "Watches tie people to the celestial clockwork... but people have been encouraged by their clocks to ignore the daily and seasonal cycles and to pretend that there is nothing to contend with but metronome-paced linear time. We appear to have caged the sun inside a machine." Michael Young, The Metronomic Society, p. 204

  6. #5
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    Re: Teardown: HMT Sona

    Quote Originally Posted by fatehbajwa View Post
    The movement in the Sona is common to most if not all hand wound HMT'S . I find them to be very robust and see lots of watches which have not been used for ages, spring to life with a simple cleaning/service.
    Thanks for the tear down. The close up pictures are awesome.

    Sent from my iPad using Tapatalk
    Well, HMT is producing only one hand winded men's calibre as far as I now. It is a licensed Citizen, and is very robust and reliable as its ancestor. Good that in XXI century one can catch such a beauties on ebay any time !
    wilderbeest - try to use the screw from Seiko 7009 if you have one, it will fit as far as I remember

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    Re: Teardown: HMT Sona

    awesome!! very informative.
    These watches are too well made for me to ignore.... I see one in my near future.

    thanks fo sharing

  8. #7
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    Re: Teardown: HMT Sona

    Quote Originally Posted by wilderbeest View Post
    I've taken apart my HMT Sona and taken some photos - if you are interested.

    Review: HMT Sona | Watch Guy

    For the money it costs, a great watch!
    If you could post a picture of the part you need, I can send it across... gratis.

    :)

  9. #8
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    Re: Teardown: HMT Sona

    Nice pics and story! Just a tip: if your camera has a manual white balance preset (most do), put it in the custom preset and snap a photo of a white piece of paper under the same lighting. It will adjust the white balance correctly so you don't get the yellow overcast. This is easy to do and removes the color cast from lighting.

    Sodiac
    Too many watches, only two wrists and never enough time...

  10. #9
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    Re: Teardown: HMT Sona

    Quote Originally Posted by fatehbajwa View Post
    If you could post a picture of the part you need, I can send it across... gratis.

    :)
    That is a very generous offer of you - I've attached a photo of the part. You won't have the click spring by any chance as well - I got a bit negligent after the screw of the main spring winder broke Name:  IMG_6169.JPG
Views: 1412
Size:  56.4 KB

  11. #10
    Member fatehbajwa's Avatar
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    Re: Teardown: HMT Sona

    PM me a picture of the click spring that you need.

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