Valjoux 7750, Mainspring, no: 770
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New ETA original part in factory sealed packaging.
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Fits cal: 7750, 7751, 7753, 7754, 7758, 7760, 7761, 7765, 7768, 7770
Versions: Valjoux / ETA
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7750: automatic, day, date. -
7751: automatic, day, date, moon phase. -
7753: automatic, date, min counter at "3" instead of "12" -
7754: automatic, date, dual time 24h. -
7758: automatic, date, moon phase. -
7760: manual wind, day, date. -
7761: manual wind, day, date, month, moon phase. -
7765: manual wind, date, no hour counter. -
7768: manual wind, date, moon phase. -
7770: automatic, 29 jewels, split second, COSC.