Setting a Citizen Crystron LC (50-1310, GN-4-S); last mystery setting of 0-3?? - Page 2
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Thread: Setting a Citizen Crystron LC (50-1310, GN-4-S); last mystery setting of 0-3??

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  1. #11
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    Re: Setting a Citizen Crystron LC (50-1310, GN-4-S); last mystery setting of 0-3??

    Sorry, didn't see previous post.

    Be Jewelled.

  2. #12
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    Re: Setting a Citizen Crystron LC (50-1310, GN-4-S); last mystery setting of 0-3??

    Quote Originally Posted by bsshog40 View Post
    I'll take another guess. Does it have an alarm? Maybe it is a sound setting, like for different melodies or tones??????
    It does not have advanced functions like alarm or dual time... it's a pretty basic watch: time and day/date plus a side light for reading the LCD in the dark.

  3. #13
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    Re: Setting a Citizen Crystron LC (50-1310, GN-4-S); last mystery setting of 0-3??

    Quote Originally Posted by Be Jewelled View Post
    Watchmem,
    just a thought…perhaps the button is to select the year to take into account the leap year extra day.
    Maybe you program 0 when in a leap year etc etc.

    Cheers
    Be Jewelled

    I thought of that but, again, why would it need any setting for calculating leap years? All electronic watches can automatically calculate 30 and 31 days for each month plus the exception of 28 or 29 days for February pretty easily. It must be something else.. but what??

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  5. #14
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    Re: Setting a Citizen Crystron LC (50-1310, GN-4-S); last mystery setting of 0-3??

    Quote Originally Posted by James A View Post
    Hi Watchman,

    Looks like the movement cal for your watch is 6090. But even looking for instructions under that movement number is difficult. Citizen also sourced this movement to Bulova so that might be another avenue to explore.

    CITIZEN - 50-1034 - Crystron - Vintage Digital Watch - Digital-Watch.com

    Regards,
    Thanks, I'll try to find the setting instructions for that movement...

  6. #15
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    Re: Setting a Citizen Crystron LC (50-1310, GN-4-S); last mystery setting of 0-3??

    It is actually for the leap year so if you set it to 0 the watch will change to 2.29 and 1, 2 and 3 will change to 3.1. Later they added the year so you didn't need to do it like this. The upside is that it won't crash and burn like all the rest in 2000.

    The setting menu is dumb though so you can still set it to 2.29 if it's a leap year and you will only see it in live mode so to speak. The 9060A also lacks a 24 hour setting.

    I have a bunch of these rare beasts but they aren't worth much in our local Swedish market.
    Last edited by Shum; December 3rd, 2015 at 01:40.
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  7. #16
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    Re: Setting a Citizen Crystron LC (50-1310, GN-4-S); last mystery setting of 0-3??

    Quote Originally Posted by Shum View Post
    It is actually for the leap year so if you set it to 0 the watch will change to 2.29 and 1, 2 and 3 will change to 3.1. Later they added the year so you didn't need to do it like this. The upside is that it won't crash and burn like all the rest in 2000.

    The setting menu is dumb though so you can still set it to 2.29 if it's a leap year and you will only see it in live mode so to speak. The 9060A also lacks a 24 hour setting.
    Many thanks for your reply but I'm not sure what you mean by 0 will change to 2.29 and 1,2,3 will change to 3.1. Could you please explain?

  8. #17
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    Re: Setting a Citizen Crystron LC (50-1310, GN-4-S); last mystery setting of 0-3??

    Quote Originally Posted by watchmem View Post
    Many thanks for your reply but I'm not sure what you mean by 0 will change to 2.29 and 1,2,3 will change to 3.1. Could you please explain?
    0 means it's a leap year so the date 2.28 will change to 2.29 and non leap yeras 1, 2, 3 will change the date from 2.28 to 3.1 when the watch goes from 11:59 PM to 12:00 AM.
    Last edited by Shum; December 3rd, 2015 at 01:47.
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  9. #18
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    Re: Setting a Citizen Crystron LC (50-1310, GN-4-S); last mystery setting of 0-3??

    Quote Originally Posted by Shum View Post
    0 means it's a leap year so the date 2.28 will change to 2.29 and non leap yeras 1, 2, 3 will change the date from 2.28 to 3.1 when the watch goes from 11:59 PM to 12:00 AM.
    So, I set it to 0 if it's a leap year, 1 if it's the first of the three non-leap year, 2 if it's the second and 3 if it's the third that concludes the cycle... Great, makes sense, thank you!
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  10. #19
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    Re: Setting a Citizen Crystron LC (50-1310, GN-4-S); last mystery setting of 0-3??

    Quote Originally Posted by watchmem View Post
    So, I set it to 0 if it's a leap year, 1 if it's the first of the three non-leap year, 2 if it's the second and 3 if it's the third that concludes the cycle... Great, makes sense, thank you!
    It should then know this until the battery runs down. Don't ask how many years this will take though.

  11. #20
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    Re: Setting a Citizen Crystron LC (50-1310, GN-4-S); last mystery setting of 0-3??

    Quote Originally Posted by Shum View Post
    It should then know this until the battery runs down. Don't ask how many years this will take though.
    How many years will this take, though?

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