This Hammie chrono: about 1970-75?

Thread: This Hammie chrono: about 1970-75?

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  1. #1
    Member pacifichrono's Avatar
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    This Hammie chrono: about 1970-75?

    I recently picked up this Hamilton chrono powered by a Valjoux 7733 (Hamilton 647). I had it serviced by my Swiss-trained master watchmaker, Richard Rogers. The case is 37.5mm x 45mm and is in very nice condition save for a few small dings/scratches.

    I'm guessing it's from about 1970-75? Does that sound close?











    Regards from Sunny San Diego..........Tom
    ____________________________________________________
    "There are two kinds of people in this world, my friend, those with loaded
    guns and those who dig!"................Blondie to Tuco in TGTB&TU (1966)


  2. #2
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    Re: This Hammie chrono: about 1970-75?

    Nice looking chunk of 70's ss Tom!

    Quote Originally Posted by pacifichrono View Post
    I'm guessing it's from about 1970-75? Does that sound close?
    Yep, the 773x series was used in the 70's by many companies since the less expensive chronograph movements from brands like Landeron and Venus weren't around anymore.

  3. #3
    Member LouS's Avatar
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    Re: This Hammie chrono: about 1970-75?

    That's in great shape, and I love the gray sunray finish in the dial - what a great background for the red highlights. I would date it to the second half of the 1970s based on my impression that these cushion cases date from that period. The case in fact reminds me of nothing so much as the russian OKEAH, which original version is from the second half of the 1970s I think...a real russian watch expert will be around to correct me if I am wrong....
    Of course the OKEAH uses the Poljot 3133, which is a russian variant of the 773x valjoux series.
    Last edited by LouS; December 25th, 2010 at 17:44.

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    Re: This Hammie chrono: about 1970-75?

    Hi pacifichrono,

    a pitty, but this cusion shape with this characteristically stepped lugs gives no information
    about the age. It is simply a classic, earlyest met in the 20s, and still applied today now and
    then. Here some samples:

    A Longines from 1940:



    A Longines fro 1969:



    A Universal from 1974:



    But there is one detail that dates it between 1969 and 1971: It has the first form of the
    reset hammer with adjustable distance between both arms.

    Regards, Roland Ranfft

  6. #5
    Member pacifichrono's Avatar
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    Re: This Hammie chrono: about 1970-75?

    Quote Originally Posted by Roland Ranfft View Post
    Hi pacifichrono,

    a pitty, but this cusion shape with this characteristically stepped lugs gives no information
    about the age. It is simply a classic, earlyest met in the 20s, and still applied today now and
    then. Here some samples:

    A Longines from 1940:



    A Longines fro 1969:



    A Universal from 1974:



    But there is one detail that dates it between 1969 and 1971: It has the first form of the
    reset hammer with adjustable distance between both arms.

    Regards, Roland Ranfft
    Wow! You really are a genius, Roland!

    Regards from Sunny San Diego..........Tom
    ____________________________________________________
    "There are two kinds of people in this world, my friend, those with loaded
    guns and those who dig!"................Blondie to Tuco in TGTB&TU (1966)


  7. #6
    Moderator at Large stuffler,mike's Avatar
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    Re: This Hammie chrono: about 1970-75?

    The Valjoux 7733 was produced from 1969 to 1978, your guess can't be denied though.
    Kind regards
    Mike


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