Results 1 to 11 of 11

Thread: Seikosha 10A movement 1946 production [AKA Banana Movement]

  1. #1
    Junior Member
    Join Date
    Jun 2011
    Posts
    5

    Default Seikosha 10A movement 1946 production [AKA Banana Movement]

    Dear friends ,
    We have a Seikosha 10.5''' 23.3 mm diameter, manual wind, sub seconds at 6. We live in Italy [Retired U.S. Navy]. Our Seikosha has a broken balance staff. Under the balance there is a seven [7] engraved. This may just mean that the movement is 7 jewels. Our Italian watchmaker has determined that this movement is a Swiss copy. But by whom? Various discussions have led to 3 makers: Moeris, Buren and Longines. Quite frankly we can't find in the Ranfft "Pink Pages" or other catalogs an exact match for our "3 Finger" Seikosha movement dubbed the "Banana" movement. Other information: On the dial side there is a tiny, tiny H65 engraved near the edge. On the front side of the back case cover there is cast Seikono 1088 but this probably refers to just the case and not the movement There is no serial number, but we know that this was the first Seiko manufactured after the war. Its production was from 1946 to 1948. The dial reads Seiko and beneath CHRONOMETER. Sadly we don't know after numerous trys how to add an attachment to this thread. We have excellent images of this movement but they are useless. in fact without the information to buy a new balance staff our Seikosha is useless. if you can help please email me at

  2. #2
    Super Moderator dave's Avatar
    Join Date
    Jul 2008
    Location
    Blighty
    Posts
    7,095

    Post

    thread now moved to the Main Forum.

    here are some instructions for posting images to the forum -

    http://www.mwrforum.net/forums/showt...s-to-the-forum

    your email address is missing...

  3. #3
    Moderator lambstew's Avatar
    Join Date
    Mar 2007
    Location
    Canada/Australia
    Posts
    2,320

    Default

    Have you tried posting on the Seiko-Citizen Watch Forum?

  4. #4
    Junior Member
    Join Date
    Jun 2011
    Posts
    5

    Default Seikosha 10A Balance staff number needed

    Quote Originally Posted by stroudart View Post
    Dear friends ,
    We have a Seikosha 10.5''' 23.3 mm diameter, manual wind, sub seconds at 6. We live in Italy [Retired U.S. Navy]. Our Seikosha has a broken balance staff. Under the balance there is a seven [7] engraved. This may just mean that the movement is 7 jewels. Our Italian watchmaker has determined that this movement is a Swiss copy. But by whom? Various discussions have led to 3 makers: Moeris, Buren and Longines. Quite frankly we can't find in the Ranfft "Pink Pages" or other catalogs an exact match for our "3 Finger" Seikosha movement dubbed the "Banana" movement. Other information: On the dial side there is a tiny, tiny H65 engraved near the edge. On the front side of the back case cover there is cast Seikono 1088 but this probably refers to just the case and not the movement There is no serial number, but we know that this was the first Seiko manufactured after the war. Its production was from 1946 to 1948. The dial reads Seiko and beneath CHRONOMETER. Sadly we don't know after numerous trys how to add an attachment to this thread. We have excellent images of this movement but they are useless. in fact without the information to buy a new balance staff our Seikosha is useless. if you can help please email me at
    Please help..How can this information on a mass produced wrist watch be "Secret" ?

  5. #5
    Junior Member
    Join Date
    Jun 2011
    Posts
    5

    Default Seikosha 10A

    We have climbed ladders, played with dolls, drew pictures and took photographs..Frankly all we need is a catalog number to replace the balance staff.

  6. #6
    Senior Member river rat's Avatar
    Join Date
    Jan 2009
    Location
    Montana USA
    Posts
    2,929

    Default

    A photo does wonders for a ID and help you want. I use http://photobucket.com/ a host site for my photo's you copy link of photo and post it in the thread real easy a child can do it. And another forum to try but photo's will also be needed any forum you go to they have a sticky you want info on a watch photo's are needed we are not the only one's.
    http://www.thewatchsite.com/index.php

  7. #7
    Super Moderator dave's Avatar
    Join Date
    Jul 2008
    Location
    Blighty
    Posts
    7,095

    Post

    mentioned twice previously -

    http://www.thewatchsite.com/index.php


    SCWF - the Seiko & Citizen Watch Forum.

    pretty sure that these folks will be able to help you out.

    plus you can post your images as attachments over there.

  8. #8
    Junior Member
    Join Date
    Jun 2011
    Posts
    5

    Default

    Quote Originally Posted by dave View Post
    thread now moved to the Main Forum.

    here are some instructions for posting images to the forum -

    http://www.mwrforum.net/forums/showt...s-to-the-forum

    your email address is missing...
    Here is my email address for anyone interested in helping us:

    Kindest regards,
    Ben Stroud
    Last edited by stroudart; 03-13-2017 at 05:10. Reason: email address deleted by site

  9. #9
    Junior Member
    Join Date
    Jun 2011
    Posts
    5

    Default

    The email address was provided but evidently was deleted automatically by the site..
    stroudart@yahoo.com Again we just want to know what balance staff was used in the Seiko "Banana" Movement which measures 10.5 lines..

  10. #10
    Moderator lambstew's Avatar
    Join Date
    Mar 2007
    Location
    Canada/Australia
    Posts
    2,320

    Default

    Quote Originally Posted by stroudart View Post
    The email address was provided but evidently was deleted automatically by the site..
    stroudart@yahoo.com Again we just want to know what balance staff was used in the Seiko "Banana" Movement which measures 10.5 lines..
    http://www.thewatchsite.com/index.php

  11. #11
    Member ernie b's Avatar
    Join Date
    Mar 2007
    Location
    Albuquerque area
    Posts
    96

    Default Cut a staff

    Can't your watchmaker cut a new balance staff? Most competent watchmakers have been trained to make balance staffs.
    Last edited by ernie b; 03-16-2017 at 21:22.

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •