Heuer caliber 12 is Swiss movement from 1970’s.
Functions: 2 registers on the dial – 30 minutes and 12 hours, cam switched, date indication.
Caliber 12 use glucydur balance and incabloc shock protection.
Automatic movement with 17 jewels
f = 21600 A/h
Power reserve: 44 hours
Diameter: 31.0 mm
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