Heuer 12-2535, Date indicator guard
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Used Heuer original part in very good condition.
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Fits Heuer cal: 12 (base caliber: Buren 1281).
Versions:
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11: N: = 19800. -
12: N: = 21600. -
14: as cal: 12 with 24h GMT. -
15: as cal: 12, sub second instead of 12 h counter.