First monocoque wristwatch case?
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  1. #1
    Member James A's Avatar
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    First monocoque wristwatch case?

    Hi Guys,

    I want to get your view on this.

    Recently I posted about the Mido Ocean star and its monocoque/mono-shell case design. I claimed that it was the first of its kind. However today I see bubba48 has posted a Hamilton cld watch. Cld when pronounced phonetically means sealed and it looks like it may well be a contender for the first mono-shell by at least 10 years.

    Below are the two designs. First the Mido.










    The Hamilton has a well/cup that the movement fits into and it also had a two part stem. My only consideration is that the bezel is separate from the case back so the crystal and bezel are removed to access the movement but the Mido is completely one piece and only the crystal needs to be removed.

    I kinda think Hamilton has it but want to get some feedback before I amend my post about the Ocean Star.

    Regards,
    Last edited by James A; February 18th, 2016 at 06:54. Reason: Title edited
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  2. #2
    Member gatorcpa's Avatar
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    Re: First monocoque wristwatch case?

    I think the first Omega Seamaster DeVilles were from the late 1950's also. Around the same time as Mido, although I don't know if there is a separate patent for the Omega case.

    I would be surprised to find out that the Hamilton was the first one piece case, although it was highly publicized when it was introduced in 1951.

    More research would be required.
    gatorcpa
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  3. #3
    Member James A's Avatar
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    Re: First monocoque wristwatch case?

    Thanks gatorcpa,

    Here is a link to the tech specs on the Omega Seamaster for 1960. Mido already had released the Ocean star in 1959. Interestingly the Omega case has a removable bezel like the Hamilton. I haven't found any patent yet.

    http://watchguy.co.uk/wp-content/upl...-Seamaster.pdf

    Regards,

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  5. #4
    Member James A's Avatar
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    Re: First monocoque wristwatch case?

    Here is the Hamilton case sans movement.



    With movement, stem and crown



    Images from here...

    Hamiton CLD Nordon 1951 Vintage Presentation Watch 18J GR 748 Serviced New Band | eBay

    Regards,

  6. #5
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    Re: First monocoque wristwatch case?

    Bulova had it's first one-piece case in the 1940's.
    The Watertite.

    Here is a 1950 example.


    Name:  1watertite 1950.jpg
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    Re: First monocoque wristwatch case?

    Roamer had patents 30/40's but I think you would term two piece.
    Last edited by Molliedooker; February 18th, 2016 at 09:30.
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    Vint. Forum Co-Moderator Mirius's Avatar
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    Re: First monocoque wristwatch case?

    Quote Originally Posted by Molliedooker View Post
    Roamer had patents 30/40's but I think you would term two piece.
    But in doing so you would be splitting hairs as the Morf case merely has the lugs attached to the bezel. The others are I would say derivatives of the Morf design.


  9. #8
    Member James A's Avatar
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    Re: First monocoque wristwatch case?

    Quote Originally Posted by bobbee View Post
    Bulova had it's first one-piece case in the 1940's.
    The Watertite.

    Here is a 1950 example.


    Name:  1watertite 1950.jpg
Views: 241
Size:  28.9 KB
    Hi bobbee,

    I found this Westfield/Bulova Watertight claimed to be 1941.Compression rings, bezel and lug/upper case arrangement (not sure what you call that). Certainly an early attempt at mono-shell. But it seems to have too many parts!



    » Vintage Watches: » #3012 Westfield Watertite by Bulova circa 1941

    Regards,

  10. #9
    Member James A's Avatar
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    Re: First monocoque wristwatch case?

    Quote Originally Posted by Molliedooker View Post
    Roamer had patents 30/40's but I think you would term two piece.
    Hi Molliedooker,

    Thanks for the info.

    The E.Morf patent CH 215999 dates to 1941.



  11. #10
    Member bubba48's Avatar
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    Re: First monocoque wristwatch case?

    This is the brevet of the Hamilton CLD

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