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The BE-54AE is an automatic chronograph movement from Bremont based on the ETA 7754.

Introduced in the limited edition ALT1-Z Zulu chronograph in 2010, the BE-54AE has since seen use in other ALT-1 models including the ALT1-B and ALT1-WT World Timer, with a world time zone complication added. It is also used in the limited edition P-51 watch.

All BE-54AE movements are modified and decorated, including a moulded and skeletonised decorated rotor. The ALT1-B model features a DLC-coated rotor, while the P-51 model has a rotor constructed in aluminum from the skin of P-51 fighter 44-12016.

The BE-54AE includes hour, minute, and 24 hour UTC hands, a second counter or hand, date at 3:00 or 4:00, and chronograph with seconds, 30 minutes, and 12 hours. The ALT1-WT adds a world timer module as well.

Like all Bremont calibres, the company rates this movement for two hours less than the ETA, at 42 hours rather than 44.




Automatic chronograph
Escapement: stone lever
Yoke winding system
Stop mechanism: Cam switching
Glucydur balance wheel
Nivaflex 1 mainspring
Incabloc shock protection
Anachron balance spring
Regulator system ETACHRON and regulator corrector


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), some with world timer complication


13ΒΌ lignes
D 30.0 mm, H 7.9 mm
25 jewels
28,800 A/h
Power reserve 44 h

Production period:

Since 2010