A 19 jewels pin lever movement

Thread: A 19 jewels pin lever movement

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  1. #1
    Moderator soviet's Avatar
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    A 19 jewels pin lever movement

    I found this 19 jewels pin lever movement in a Seagull date watch. It is very strange why someone made a full jewelled 3/4 plate movement but with a pin lever escapemant? I guess it is a Swiss movement. Between it and the 9 jewels Zhongshan shock proof jewelled escapemant movement, which is a better one?, and which is more costly to make? I think I have seen similar Swiss movements sometimes with no jewels or with 1-2 jewels. Maybe Seagull added some jewels to those movements?
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  2. #2
    Mod. Russian, China Mech. Chascomm's Avatar
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    Re: A 19 jewels pin lever movement

    Quote Originally Posted by soviet
    I found this 19 jewels pin lever movement in a Seagull date watch. It is very strange why someone made a full jewelled 3/4 plate movement but with a pin lever escapemant? I guess it is a Swiss movement. Between it and the 9 jewels Zhongshan shock proof jewelled escapemant movement, which is a better one?, and which is more costly to make? I think I have seen similar Swiss movements sometimes with no jewels or with 1-2 jewels. Maybe Seagull added some jewels to those movements?
    It bears a very strong resemblance to the Smiths calibre TY, produced from 1956. But AFAIK the TY was only made with 5 jewels, and it was only 10.5''' (~22mm) wide. Also the winding mechanism is slightly different. Overall it has the look of a 1950s Smiths design from their Ystradgynlais factory. On the other hand, putting so many jewels in a pin-lever movement is more like the Swiss.
    Last edited by Chascomm; October 2nd, 2006 at 09:36.

  3. #3
    Moderator soviet's Avatar
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    Re: A 19 jewels pin lever movement

    Quote Originally Posted by Chascomm
    It bears a very strong resemblance to the Smiths calibre TY, produced from 1956. But AFAIK the TY was only made with 5 jewels, and it was only 10.5''' (~20.5mm) wide. Also the winding mechanism is slightly different. Overall it has the look of a 1950s Smiths design from their Ystradgynlais factory. On the other hand, putting so many jewels in a pin-lever movement is more like the Swiss.
    I understand that the most critical part of a watch is the escapement that is also most precision and difficult to make. The others could be considered as "decoration", although some are functioning. Zhongshan is a right approach to improve the accuracy of a watch with limited jewels.

    Tianjin's 1st, also China's 1st watch was a 15 jewels pin lever CUMA watch. I guess it must be easier to make than a jewelled escapement watch.

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  5. #4
    Moderator soviet's Avatar
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    Re: A 19 jewels pin lever movement

    I have a Swiss Rocar with a 15 jewels pin lever movement. It was listed on the lowest category of imported watches.Another brand is SINDACO.

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