Finally had my Marathon JSAR converted to an automatic
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  1. #1
    Member oRAirwolf's Avatar
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    Finally had my Marathon JSAR converted to an automatic

    I finally had my Marathon JSAR converted to an automatic. So without further adieu, here's a shaky video and a reccomendation for Right Time Watches in Highlands Ranch, CO.

    I sourced the 2824-2 w/ Incabloc from Ofrei.com. It originally had the ISA quartz 1198 in it. The movement was about $125 shipped and labor was $150 including pressure testing. The watchmaker that did the conversion said he didn't have to broach the seconds hand. It was purely drop in, plug and play.



    I did my best to take a picture of the canon pinion incase anybody was interested.



    Now I just need a Marathon Arctic Ranger and I'll be set...

  2. #2
    Member soberdave09's Avatar
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    Re: Finally had my Marathon JSAR converted to an automatic

    niccccccccccccce,that's my favorite one.always wanted a jsar with the auto movement in it
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  3. #3
    Member oRAirwolf's Avatar
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    Re: Finally had my Marathon JSAR converted to an automatic

    Quote Originally Posted by soberdave09 View Post
    niccccccccccccce,that's my favorite one.always wanted a jsar with the auto movement in it
    Thank you sir!

    If you ever want one done, call up Right Time Watches in Highlands Ranch, CO. Send them the watch and the movement and they will send you back a nice auto JSAR :)

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    Member Metlin's Avatar
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    Re: Finally had my Marathon JSAR converted to an automatic

    I had not known that that's even possible, but it makes sense. Excellent!
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    Member Chronopolis's Avatar
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    Re: Finally had my Marathon JSAR converted to an automatic

    I swear, I will sell one of kids if I hafta to git me one of those.

    Someone way~ more knowledgeable than I about this sort of thing told me that ONLY the FIRST edition of JSAR is equipped with cases deep enough to accommodate an ETA 2824.
    Apparently subsequent editions underwent a size change - due to some external pressure (bastards!) - so as to make this modding impossible.

    OP: Is YOURS a first edition?

  7. #6
    Member oRAirwolf's Avatar
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    Re: Finally had my Marathon JSAR converted to an automatic

    Quote Originally Posted by Chronopolis View Post
    I swear, I will sell one of kids if I hafta to git me one of those.

    Someone way~ more knowledgeable than I about this sort of thing told me that ONLY the FIRST edition of JSAR is equipped with cases deep enough to accommodate an ETA 2824.
    Apparently subsequent editions underwent a size change - due to some external pressure (bastards!) - so as to make this modding impossible.

    OP: Is YOURS a first edition?
    I'm honestly not sure, its a November 2007 production run. My understanding is that even the new ones with ETA quartz movements can be converted, but require broaching the minute and hour hands too. The newer models use the ETA F06.111 which is 70/120/20 whereas the ETA 2824-2 is 90/150/25. I would PM lysanderxiii on here. He knows a lot about this conversion and really helped me out.

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    Member Raza's Avatar
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    Re: Finally had my Marathon JSAR converted to an automatic

    I also heard that the newer run JSARs (like mine) can't be converted. It's a cool thing, though, definitely. It would look awesome with a smoothly sweeping seconds hand. I have a few questions for you:

    1. Is the watch heavier or lighter now?
    2. Why did you go with a white date disc instead of a black one?
    3. Can you hear it tick through the case?
    4. What does "broach the seconds hand" mean?
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  9. #8
    Member Ray MacDonald's Avatar
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    Re: Finally had my Marathon JSAR converted to an automatic

    broach = enlarge hole so hand fits the pinion properly.

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  10. #9
    Member gaijin's Avatar
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    Re: Finally had my Marathon JSAR converted to an automatic

    Quote Originally Posted by oRAirwolf View Post
    Thank you sir!

    If you ever want one done, call up Right Time Watches in Highlands Ranch, CO. Send them the watch and the movement and they will send you back a nice auto JSAR :)
    Movement on its way from Ofrei - Check

    Email off to Right Time confirming particulars - Check

    Begin painful wait until my new auto JSAR is in hand - Check

    You certainly know how to motivate action! I have been thinking about this mod for awhile, but your video and details have finally pushed me into action.

    Thank you, sir!
    "So?"
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  11. #10
    Member oRAirwolf's Avatar
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    Re: Finally had my Marathon JSAR converted to an automatic

    Quote Originally Posted by Raza View Post
    I also heard that the newer run JSARs (like mine) can't be converted. It's a cool thing, though, definitely. It would look awesome with a smoothly sweeping seconds hand. I have a few questions for you:

    1. Is the watch heavier or lighter now?
    2. Why did you go with a white date disc instead of a black one?
    3. Can you hear it tick through the case?
    4. What does "broach the seconds hand" mean?
    1. It might be a little heavier, but I honestly cant tell a difference.
    2. I kindof liked the idea of the contrast between black and white in the date window. Plus it would have cost extra to source one with a black wheel.
    3. Yes I can hear it tick through the case, its very quiet though.


    Quote Originally Posted by gaijin View Post
    Movement on its way from Ofrei - Check

    Email off to Right Time confirming particulars - Check

    Begin painful wait until my new auto JSAR is in hand - Check

    You certainly know how to motivate action! I have been thinking about this mod for awhile, but your video and details have finally pushed me into action.

    Thank you, sir!
    Haha! Awesome. The guy who did the work was named Ilya. You should be able to reach him at (303)862-3901 if they dont respond via email.

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