Vek podla cisla na dinku

[Gombo]

Vie mi niekto podla tych cisiel na dinku povedat aspon cca rok vyroby?Vopred dakujem

[Harwey]

Neviem ci tu nieco najdes

https://vintagecitizenwatches.com/tag/date-of-manufacture-of-a-citizen/

Hodil som sem prvy odkaz z guglu

[Gombo]

To som nasiel,ale vela som sa nedozvedel.

[Jarda_Prim]

To jsem našel na watchuseek.com:

 

Re: Decoding the mordern Citizen Serial number for Date of Manufacture?

 Good Day Everyone,

Another example from my Citizen Promaster JW0111 S/N: 591020XXX
1,000,000 gives the manufacturer room for long production and digits combination.
My theory:
Digit 1: 5=Year
Digit 2: 9=Month ("N" (November) or "D" (December) -
Digit 3: 1=Million
Digit 4: 0=Sequence of the million
Digit 5: 2=Sequence of the million or another code-common to most watches
Digit 6: 0=Manufacturing Serial number capable of 9,999 watches
Digit 7: X=Manufacturing Serial number
Digit 8: X=Manufacturing Serial number
Digit 9: X=Manufacturing Serial number

Have a great day.