Valjoux 72c, Month jumper, no: 2578
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NOS original part.
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Fits cal: 72c, 88, 90
Versions: 13'''
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23: 30/45 min counter. -
23c: 30/45 min counter, calendar. -
72: 30 min, 12 hour counter. -
72c: 30 min, 12 hour counter, day, date, month calendar. -
88: 30 min, 12 hour counter, day, date, month calendar, moon phase. -
90: sweep second, day, date, month calendar, moon phase.