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Thread: Two simple technical questions about A10 movement

  1. #1

    Two simple technical questions about A10 movement

    Golly one can end up spending a lot of time reading a lot of confused chatter and uninteresting opinionating about this movement and it's role in the world.

    From this link one can download the technical specs for it: http://www.soprod.ch/EN/downloadm.htm

    1) is the A10 identical in dimensions to the 2892?
    2) is the A10 (unlike, say, the SW300) nonetheless a different design?

    If someone who's answered yes to both questions is in a position to muse authoritatively upon the differences between the two movements, then please please please please please

  2. #2
    wind-up merchant OhDark30's Avatar
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    Clearly this thread needs a spurious aviation input from me, so here's a pic of the Fairchild A-10 Thunderbolt, aka the Warthog
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    There's no need to thank me
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  4. #3
    Quote Originally Posted by Der Amf View Post
    Golly one can end up spending a lot of time reading a lot of confused chatter and uninteresting opinionating about this movement and it's role in the world.

    From this link one can download the technical specs for it: http://www.soprod.ch/EN/downloadm.htm

    1) is the A10 identical in dimensions to the 2892?
    2) is the A10 (unlike, say, the SW300) nonetheless a different design?

    If someone who's answered yes to both questions is in a position to muse authoritatively upon the differences between the two movements, then please please please please please


    Yes, the Soprod A-10 is exactly the same dimensions as the ETA2892/Sw300. Its 3.6mm thick. It also shares a 42hr power reserve.

    The Soprod A-10 is a totally different design. However despite that the A-10 (owned by Festina) is not designed by Festina.

    The A-10 is in fact a re-badged Seiko 4L25, a movement that was used by Seiko and Credor in their higher ranged models in the last 15yrs or so. The movement is no longer used by Seiko.

    I do not know about the technical differences of the movement, but I can say that the A-10 has very much a Grand Seiko movement feel to it (crown use, handwinding etc)

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  6. #4
    Moderator - Central tribe125's Avatar
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    Quote Originally Posted by Der Amf View Post
    1) is the A10 identical in dimensions to the 2892?
    2) is the A10 (unlike, say, the SW300) nonetheless a different design?

    1) No, it's a bit thicker.

    2) Yes, it's different to a 2892. By virtue of being based on a Seiko 4L.

  7. #5
    Thank you very much.

    Quote Originally Posted by Steppy View Post
    The A-10 is in fact a re-badged Seiko 4L25. The movement is no longer used by Seiko.
    Just to be clear: is it the *design* that is rebadged, or are the actual individual movements using Seiko-built parts?

  8. #6
    El bot. geoffbot's Avatar
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    Erm it has 4 fewer jewels
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  9. #7
    Design only - hence it is now Swiss

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  11. #8
    Seiko must have been horrified when they realised they were putting movements only 3.6mm thick into their Grand Seikos. I bet they couldn't flog the design fast enough.

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  13. #9
    Don't think they put them into any GS's.

    They were limited to the higher range Seiko Auto's and a few of the Credors

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    Seiko SARA001, 003 and 005

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  15. #10
    Moderator - Central tribe125's Avatar
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    Steppy answered while I was posting. I'll defer to him on the thickness.

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