Citizen 36,000bph Movments Leopard and SuperBeat 10s

Discussion in 'Vintage Watch Discussion' started by SeanCody, May 29, 2016.

  1. SeanCody

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    Citizen was the last of the major watch makers to introduce a 36,000 bph movement and they did so in 1970? with the Cal. 7230.

    This was a high frequency movements of Citizen's own design.

    Higher frequency movements are more accurate than a lower frequency movements for a simple reason. The higher frequency movement divides time into finer increments. This translates into higher resolution. Therefore, a 36,000 bph movement is capable of 1/10th of a second timing. Compare this to a 28,800 bph movement that is only capable of 1/8th of a second timing. High frequency watch movements should also be more accurate from a statistical standpoint because the higher number of beats per time interval creates higher time keeping stability in these movements The average accuracy should be higher than a lower beat movement because the average is established over a greater number of beats.

    The Citizen Leopard line has both 28,800 and 36,000bph movements.

    I have a few Citizen 36,000bph Leopards:

    The 28 jewel 67-2050
    The 28 jewel 67-2211 Citizen 7230. October 1972 Case#: 4-722531TA. Serial #: 21000408. Model#: 67-2211 Case & Bezel ref.: GN-5-S


    Sweephands' Leopard:
    The Blog: https://sweep-hand.org/2012/01/29/this-weeks-featured-watch-21-leopard-36000/

    And old Thread: http://www.network54.com/Forum/78440/message/1254653396/My+small+collection+of+big+cats!

    Seikoholics list of models: http://seikoholics.yuku.com/sreply/162/CITIZEN-Mechanical-Automatic#.V0p_K4-cFJU

    SCWF thread: http://www.thewatchsite.com/21-japanese-watch-discussion-forum/80393-citizen-leopard-36-000-bph.html

    Citizen 36,000bph Pocket Watch: https://vintagecitizenwatches.com/2014/02/10/citizen-leopard-36000-pocket-watch-67-2192/
     
  2. SeanCody

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    [youtube]https://www.youtube.com/watch?v=gaOCxrUfgQE[/youtube]
     
  3. SeanCody

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  4. SeanCody

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  5. SeanCody

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    the part number for the crystal is 54-61072

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  6. SeanCody

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  7. SeanCody

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    [​IMG]

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  8. SeanCody

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    The above images are from Stephen Netherwood and Sweephand's Vintage Citizen Watch Blog, 2016

    aka Sweephands blog. https://sweep-hand.org/
     
  9. SeanCody

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    Citizen Leopard 36,000 bph. It was manufactured in August of 1970. 4-720865.

    Original bracelet?

    Original Crown?

    Can the crystal be saved?

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  10. SeanCody

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    So, the question of a replacement crystal for the oval has come up.

    So, then the question turned to to two ovals. The vertical oval v. The horizontal oval and whether the crystals were interchangeable.

    So, I measures the two crystals.

    Check these photos out.

    Gray. 26.79mm
    White. 26.55mm

    Gray. 30.62mm
    White 30.71mm



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  11. SeanCody

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    Citizen Leopard 4-720025TA 00301411
     

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  12. SeanCody

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    Vintage 1969 CITIZEN Automatic watch [LEOPARD 36000] 28J 36000bph
     

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  13. SeanCody

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    Citizen Leopard Super Beat 10 4-720864TA
     

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  14. SeanCody

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  15. Brian Leiser

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    The camera your using takes awesome macro pictures. :)
     
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  16. SC-Texas

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    Back from Brian Leiser [​IMG][​IMG][​IMG][​IMG][​IMG][​IMG][​IMG][​IMG][​IMG][​IMG]

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  17. SC-Texas

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    Citizen Leopard superbeat 10 36k

    #watches #watchcommunity #watchporn #horology #watchesofinstagram #wristcandy #wristwatch #wristwatchcheck #wristwatches #watchaddict #watchcommunity #watchgeek #watchgeeks
    #automaticwatch #menswatch #mechanicalwatch[​IMG][​IMG][​IMG]

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  18. SC-Texas

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    Brian Leiser aka 31Jewels restored these 1970 Leopards[​IMG][​IMG][​IMG][​IMG][​IMG][​IMG]

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