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  1. Omegist Mar 3, 2017

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    Hi fellow addicts

    There have been a couple of threads about the different vintage broad arrow hands
    I have the impression the time has come to cover that topic again

    I want to compare the Reference 2913, 2914, 2915 & 2990 hands; with the help of some pics from my collection I want to show the small differences and how to differentiate between these almost equal looking hands

    I will show the minute hands as well; but I won't go into this topic too deeply; unfortunately I don't have a spare 2914 minute hand at the moment; so forgive me for not showing it.


    First of all the - hole sizes : hour hand/minute hand (in mm)

    2990 Ranchero cal 267: 1,4 / 0,75
    2913 Seamaster 300 cal 501: 1,5 / 0,8
    2914 Railmaster cal. 284: 1,7 / 0,95
    2915 Speedmaster cal 321: 1,9 / 1,05




    Overview pictures - hour hands front

    As you see - the hole size of the 2915 & 2914 is obviously the biggest; the entire hand body is bigger
    the difference between the 2913 and 2990 is minimal
    Obvious as well is the length - the 2990 is the longest hand
     
    image.jpg image.jpg
    Edited Mar 4, 2017
    WYO_Watch, DaveK, zrleopold and 7 others like this.
  2. Omegist Mar 3, 2017

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    Overview pics - back

    Notice the collar difference - the cal 321 2915 hand has the highest collar
     
    image.jpg image.jpg image.jpg
  3. Omegist Mar 3, 2017

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    radium 2913 hands - 1957
     
    image.jpg image.jpg
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  4. Omegist Mar 3, 2017

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    Now in comparison to later luminova replacement hands
     
    image.jpg image.jpg
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  5. Omegist Mar 3, 2017

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    2914 - 1950s hand
     
    image.jpg image.jpg
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  6. Omegist Mar 3, 2017

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    2915 - left Radium ; on the right tritium service hands
     
    image.jpg image.jpg image.jpg
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  7. Omegist Mar 3, 2017

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    And the 2990 hands
     
    image.jpg image.jpg
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  8. Omegist Mar 3, 2017

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    The minute hands; notice the lume shape differences between the 2915 radium and tritium hands
     
    image.jpg image.jpg
    Edited Mar 3, 2017
    td69, smitty190373 and gemini4 like this.
  9. Omegist Mar 3, 2017

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    And a group photo
     
    image.jpg
  10. KstateSkier Mar 3, 2017

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    ^^ Stuff like this is why this forum kicks ass!

    Thanks @Omegist for putting this together.
     
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  11. kox Mar 3, 2017

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    Have researched and written a few posts on these myself in the past, but this is .... absolutely fabulous work and parts collection ::love::
     
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  12. Omegist Mar 3, 2017

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    I have always enjoyed reading your threads!!


    I just thought I need to share what I have collected to give a good overview

    and I welcome everybody to contribute to this thread to make it easier for future members and collectors to distinguish between the single hands.
     
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  13. nixf6 Mar 3, 2017

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    Great presentation , Very informative for a novice . Thanks for passing on the knowledge.
     
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  14. tapaptpat Mar 3, 2017

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    Pointing the way. Thank you..
     
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  15. Cuttysark Jul 6, 2017

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    Thank you very much. In Italy we have a way of saying about this precious infos: It's gospel.
     
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  16. cell1010 Jul 6, 2017

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    That's great stuff @Omegist

    Thanks for your very detailed explanation and I believe this will be very helpful in future...
     
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  17. td69 Jul 6, 2017

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    Hats off to you @Omegist

    Without seeing the back of the hand, how do you tell whether a 2915 hour hand is radium aside from the color and texture of the lume?
     
  18. Omegist May 5, 2018

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    Geiger counter and UV light
     
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  19. w154 Oct 22, 2019

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    I need some help !

    @Omegist are you free :D

    So I bought a very small lot of some Omega parts and other manufacturer parts. In a very small box with some 1950s Omega crowns was a broad arrow hand. I’m wondering what it is. I’d like to say 2915 but there are some questions...

    First the photos, and I can confirm that the hole diameter is 1.90mm.

    ED2A5271-06C8-474B-B916-9BF89FFD03A0.jpeg 58C199FA-4484-4BE0-8220-98E4500F956E.jpeg 0E6F2813-AF4D-4110-80FE-6340E2AAE355.jpeg 3D219A06-4579-4C8C-A550-A889CD120FB0.jpeg 24CB745A-DBC5-44E3-B5DE-EFBEA82541BE.jpeg

    Then there was one later crown in the same box which is here. I include it incase it provides a connection or a clue. It’s 6.25mm and by my count has 22 teeth. I don’t find it in MWO.

    0BCE7640-F8A6-46DE-BADB-1D668AEC4067.jpeg 9C32425B-8267-4A98-8BDD-D59C7D7EF3EB.jpeg 3380503B-A2DE-4A17-8275-84FDB4B0A294.jpeg

    And then the questions or I could say “problems” with the hand. The profile seems to be quite flat when I look at 2915 hands, and also the lume doesn’t read strongly on my Geiger. Any suggestions what I might have ?

    And edit to add, the other thing in the small box was a chrono pusher. But it is 4.40 diameter and 3.65 long so it also doesn’t match anything in MWO. So maybe it’s no clue but I’ll add here for completeness.

    E3BD5153-2B11-4B20-834E-63BCD2BF03B6.jpeg
     
    Edited Oct 22, 2019
    JimJupiter likes this.
  20. w154 Oct 22, 2019

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    This was a bit of a pain to do on an iPad, but here’s a best attempt at scaling my hand against a known 2915 hand. I used a reference image from a different OF thread as I figured it would help to have a shot that was perfectly straight on.

    4275A659-345E-44FF-A2BC-290539142661.jpeg