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RRM7309-C is a watch calibre by Ball Watch Company.

It is an automatic mechanical movement, which is produced in-house and has chronometer precision. Complications are hours, minutes, sweep seconds and date. The power reserve is 80 hours.



  • Hours, minutes, sweep seconds and date


  • Ø 34.24 mm, H 5.16 mm
  • 25 Jewels
  • 28,800 A/h

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rrm7309-c.txt · Last modified: 06.11.2021 18:08 by gerdlothar

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