Heuer 12

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This chronograph movement was createdin a secretpartnershipbetweenBreitling,Heuer-Leonidas, Hamilton/Burenand DuboisDéprazin order to developthe firstautomaticchronograph.Caliber11 Chronomaticwas presentedin March 1969shortly after theZenith/Movadopresentedthe firstautomatic windchronograph (ELPrimero) in Januarythe same year.The chronographmoduleDuboisDépraz8510hasalso been used byValjoux,Cal:7740. Data Heuer cal: 12 17 jewels, automatic wind (microrotor), chronograph, 60 s, 30 min, 12 h, date. Size: 13,75''' 31,00 mm. H: = 7,70 mm. N: = 21600. Power reserve: 42 h. Versions: Heuer 11: N: = 19800. 12: N: = 21600. 14: as cal: 12 with 24h GMT. 15: as cal: 12, sub second instead of 12 h counter. Show more