ETA 7754

Self-winding chronograph movement with 25 jewels, ball-bearing rotor, unidirectional winding, 1/8-seconds counter, 30-minutes counter, 12-hours counter, 28.800 A/h, power reserve ca. 44 hours.

Variation of the Valjoux 7750, with additional 24 hours hand and second time zone mechanism (GMT).

Since the takeover of Valjoux by ETA the movement is also called Calibre ETA 7754.

Also Known As

• Ball RR1105
• Bremont BE-54AE

Manufacturer: ETA/Valjoux Description: Automatic chronograph Escapement: stone lever Yoke winding system Stop mechanism: Cam switching Glucydur balance wheel Nivaflex mainspring Incabloc shock protection Regulator system ETACHRON and regulator corrector Functions: Small seconds at the 9 1/8-seconds counter, 30-minutes counter, 12-hours counter Rapid calendar advance Hacking seconds Complications: 12 hours counter, day: quickset feature, 24 hours hand with second time zone mechanism (GMT) Data: 13¼ lignes D 30.0 mm, H 7.9 mm 25 jewels 28,800 A/h Power reserve 44 h Production period: Since 2003