Why do some quartz watches have jewels?
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  1. #1
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    Why do some quartz watches have jewels?

    I noticed that some higher end quartz watches like the Omega Seamaster Quartz (based on the ETA 255.461 movement) features several jewels in them (6 apparently, in the case of the Seamaster). Do ALL quartz watches have this, or is this exclusive to the higher-end quartzes? If so, what functional purpose do they serve?

  2. #2
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    Re: Why do some quartz watches have jewels?

    Jewels in any movement (mechanic, tuning fork or quartz) have one function: Friction reduction.
    Cheap movements have zero jewels.
    Quality ones have several. You can expect a quality, jewelled quartz movement to be more long lasting than the other type.

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    Member xevious's Avatar
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    Re: Why do some quartz watches have jewels?

    Yes, the purpose they serve is to reduce friction. Far harder than glass. Super smooth. They're used to secure spinning gears and such.
    In rotation: Citizen Attesa ATV53-2834, Eco Drives | Omega Seamaster | CASIO: TW-7000, MRG-220, RevMan, G-2000D, DW-5700ML, GW-9100 | Seiko SKA-413, SBPG001

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    Re: Why do some quartz watches have jewels?

    pardon my ignorance, but why would there be points of friction in a quartz watch if its just an electric current running through a circuit board?

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    Re: Why do some quartz watches have jewels?

    There are still a bunch of gears that transmit the movement to the hands.



    I think you are thinking of digital/lED watches. Those quartz movements have no jewels. No moving parts (OK, the crystal oscillates/moves...)
    monza36 and j3poii like this.

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    Moderator Public Forum GlennO's Avatar
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    Re: Why do some quartz watches have jewels?

    Just yesterday sold my vintage seamaster - it's got 17 jewels

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    Re: Why do some quartz watches have jewels?

    It's a waste... the friction on a quartz watch is lesser than mechanicals, so even non jewelled movement have very little wear. Just throw away and replace-

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    Re: Why do some quartz watches have jewels?

    Quote Originally Posted by Bfisher View Post
    Just throw away and replace-
    Tell that to these guys: https://forums.watchuseek.com/f9/
    jason_recliner likes this.
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    Re: Why do some quartz watches have jewels?

    Quote Originally Posted by Bfisher View Post
    It's a waste... the friction on a quartz watch is lesser than mechanicals, so even non jewelled movement have very little wear. Just throw away and replace-
    False economy.....

    Service for a simple quartz, labor = $50.00

    Replacement of a quartz movement:

    - new movement (255.461 Swiss*) = $52.50
    - postage = $7.63
    - labor = $35.00
    TOTAL = $95.13

    _________________________
    * If you can find one...
    Last edited by lysanderxiii; May 5th, 2011 at 13:09.
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    Re: Why do some quartz watches have jewels?

    Quote Originally Posted by lysanderxiii View Post
    False economy.....

    Service for a simple quartz, labor = $50.00

    Replacement of a quartz movement:

    - new movement (255.461 Swiss*) = $52.50
    - postage = $7.63
    - labor = $35.00
    TOTAL = $95.13

    _________________________
    * If you can find one...
    I was thinking about a $10-20 movement... indeed if the movement costs $50 servicing make sense.
    The availability of a fresh movement could be a problem.

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