I would like help dating this Chrono.

Thread: I would like help dating this Chrono.

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  1. #1
    Member hamx15's Avatar
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    I would like help dating this Chrono.

    Hi all....
    I would like help,dating this watch.
    I am looking for some input to the possible age of this chrono...
    It was stated to be a 7750... I'll know for sure Friday,after a trip to the watchmaker....
    I will describe a bit... the photos are the best I could get.
    I'm having to use my web cam....
    It has the following...
    I think this may be a US made Hamilton,or wherever,it's not "Swiss Made".
    It is a 39mm case.
    It has a white dial,and at six O'clock it simply says " T Swiss T"..
    A notehis watch has no applied lume at all,anywhere.
    So there goes the idea of the (T) meaning Tritium.

    On the back there is no mention of Swiss...
    On the back it says,Hamilton (with the crown in the center),and then,
    Water resistant, Stainless Steel,and a stamped 4 digit number 9940.
    That number 9940 .... I haven't found yet....I can't make sense of as a serial number..
    Maybe it's a model number ??
    Back to the dial front side.
    The Regular hands are in a Gold Finish,all three.
    The Chrono hands,are Blued....
    Note he sweep sec hand is blued,but the tip is in Gold.

    The Eyes have a thin Gold ring around them,and there is a thin Gold ring around the bezel...
    The actual bezel is solid,plain non rotating polished stainless.
    The words Hamilton,and Automatic Chronograph,appear on the Dial.
    It does have a Date complication.
    This is a quick set date,and it is a hacking capable movement.
    The crystal appears to be Mineral..... It has a few tiny scratches.
    Or it did.... I've already polished them out.
    I say it's mineral,due to the sound it makes when tapped with metal.
    The rest of the case is polished Stainless. Screw on back.
    Non screw down crown....
    The hour markers,are of the Roman Numeral Type,and appear to be painted/printed on.
    If it matters,for dating purposes...The lugs are the drilled thru type.With holes all the way thru to the outside.
    Ok that's about all I can tell ya.....
    Anyone know closely the era of this watch??
    At first I thought something around the 70's.... Or early 80's.
    However I do not know when Hamilton started using the 7750's in non Swiss made chrono's.
    If in fact this is actually powered via a 7750.
    It is running well,and all functions work well.
    Thats a after market bracelet...
    I'm going with leather....
    I'll see if it has any numbering on the movement,but I doubt it.
    Thanks for any input.....
    Attached Images Attached Images





    "All instruments born to marking time truly live lives having a mind of their own"
    Sir: Hamington

  2. #2
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    Re: I would like help dating this Chrono.

    It apears to be "Swiss Made". That is what the "T SWISS T " should mean.
    The subdial at 9, what is the function of it? No numbers!
    Without prejudice: The layout of the dial is interesting, the subdials are very close to the hour ring, and the date window too!
    Can you open the screw in caseback and take a pic of the movement?
    Last edited by Janne; September 30th, 2008 at 04:03.

  3. #3
    Member Ray MacDonald's Avatar
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    Re: I would like help dating this Chrono.

    It's definitely Swiss. Hamilton never made an automatic movement in the USA.
    According to the Ranfft archive the 7750 has been around since 1973.
    Last edited by Ray MacDonald; September 30th, 2008 at 04:08.

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  5. #4
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    Re: I would like help dating this Chrono.

    Definitely a Valjoux 7750 watch. These enamel look alike dials became
    fashionable in the nineties, and some use them still today - thus not actually
    vintage.

    Anyway, a movement photo may help further. Some details of the 7750
    were modified in the long production periode of this million seller.

    Regards, Roland Ranfft

  6. #5
    Member Eeeb's Avatar
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    Re: I would like help dating this Chrono.

    It is next to impossible to precisely date this. Chronos like this have been around for a long time and every ten years someone re-releases a retro version. It is obviously later than 73. The date w/quickset probably places it in the 80's or later.

    This type dial was fairly popular in the late 80s... but, like I said, folks keep reissuing them.
    "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!

  7. #6
    Member hamx15's Avatar
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    Re: I would like help dating this Chrono.

    Janne.... The eye/sub dial at nine,is the constant/regular sec indicator...
    It runs all the time ... 0-60 sec..
    You don;t have use of the sweep,unless the chrono is running,so on the three eye chrono's the small 60 sec eye,serves as the constant second indicator...
    The movement is a Valjoux 7750.
    The T Swiss T ,does not mean "Swiss Made" ... It only indicates that the movement is Swiss in origin..
    Only the wording "Swiss Made" by Swiss law,means "Swiss Made".

    If Hamilton never assembled any 7750 chronographs,in the U.S. then this watch must be a fake.......
    It's my understanding that Hamilton,from the time they stopped manufacturing in the U.S. went directly to manufacturing in Switzerland.
    I would think that any watch they manufactured in Switzerland,surely would have read "Swiss Made". Historically the use of "Swiss" indicates a non Swiss made watch.
    Unless by chance the current law requiring the wording of Swiss Made wasn't in force when this watch was made...
    Otherwise.... this Hamilton .......is a fake.
    Imagine that....... Who'd want to risk capital,building fake Hamiltons ??
    I really don't know....
    Hence me asking for help dating this critter.....
    I suppose it's possible,that out there somewhere lost to history,is the fact that Hamilton started having watches built outside of the U.S.for a time until they moved all to Switzerland...If that were the case,then those watches,would only say "Swiss". ? ? ? ?
    "All instruments born to marking time truly live lives having a mind of their own"
    Sir: Hamington

  8. #7
    Member hamx15's Avatar
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    Re: I would like help dating this Chrono.

    Ok........well goody.......
    Why then..... ???
    Why then would the dial only be printed with..."Swiss" vs "Swiss Made"
    All of the reassuring,sounds comforting.Call me a doubting Thomas,but I don't understand that Swiss part.....
    Ya just got to know,that if it were made in Switzerland..... ??
    As I stated earlier ..... Maybe,just maybe the big deal of Swiss Made,hadn't been declared yet....In written law,that is....
    Maybe the term "Swiss" was still sufficient to indicate .... Swiss Made.

    As far as the comment about continued reissue....
    Yeah.... When I first saw the plain bezel,and the printed Tachy....
    The first thing I thought was it looks like and old Meylan,hand wind.....
    Only the eyes are set differently.
    Only those were built before the 7750 came along....
    Then to again with the plain bezel,it looks like the Automatic Chronograph Reduced models.
    Those were all late 80's.......
    I'm still confused about the wording "Swiss",and why it only says Swiss.
    There's something,that just ain't right about this........
    I appreciate all the reassuring,comments of it being Swiss....
    Especially sense,Swiss is exactly what it says.....
    Why does it not say Swiss Made ??

    To address a comment I made earlier,about it being a fake.....
    Now that I think about it..... That can't be....
    Even more puzzling would be the question of,why would a fake be made that only read "Swiss" ....
    Why would time be spent to make a fake,that indicated it wasn't Swiss Made ????
    Sometimes I get caught between me and myself.
    Here I am,caught in the middle with you.
    "All instruments born to marking time truly live lives having a mind of their own"
    Sir: Hamington

  9. #8
    Member pacifichrono's Avatar
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    Re: I would like help dating this Chrono.

    It looks closer to 1980 than 1970. Although the 7750 was introduced in 1973, I don't think they were built in large quantities until the 1980s because of the adverse impact of the quartz revolution; the 7733 and 7734 manual winds were still being used throughout the 1970s.

    Unless the watch is not a genuine Hamilton, it was not made in the U.S., as Hamilton ceased all watch manufacturing in the U.S. in 1969. Perhaps Hamilton had cases made in West Germany or elsewhere, then mated to the 7750, resulting in the T Swiss T.
    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)


  10. #9
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    Re: I would like help dating this Chrono.

    I have a Tissot watch with the same wording and though there are no Glow markers at all the hands have a pathetic thin strip of it that barely shows in the dark, looking at your hands and the line on them it could have been the same, so I think one T on your watch was for the stuff, it didn't matter how little was used it still had to be noted on the watch. One of my old Rado Cattlogues has a write up on the changes to T SWISS T and Swiss Made etc, I will have to dig it out when my back improves.

  11. #10
    Member Eeeb's Avatar
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    Re: I would like help dating this Chrono.

    Swiss and Swiss Made are equivalent.
    "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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