ETA Valgranges Caliber A07.171

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Caliber NumberA07.171 Valgranges
Movement TypeAutomatic
Size 16 1/2”’ (36.60mm) x 7.90mm thick
Power ReserveUnknown (add in the comments below)
Vibrations Per Hour28,800, 4Hz
Shock SystemUnknown (add in the comments below)
FeaturesHours, minutes, seconds, second time zone (GMT)
Hacking SecondsYes
Country of ManufactureSwitzerland
Known ModelsInvicta 12878

According to the ETA site, the caliber A07.171 is equipped with “Regulator system ETACHRON with finetiming device.”

Other variations of this movement include:

  • A07.111 calibre: hours, minutes, seconds, date
  • A07.161 calibre: hours minutes, seconds, date, power reserve
  • A07.211 calibre: hours, minutes, seconds, date, chronograph
  • A07.171 calibre: hours, minutes, seconds, date, 24-hour hand, time zone

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William Kee
William Kee
4 years ago

Power Reserve: 46 hr

Dan T
Dan T
3 years ago

my new longines avigator with the L704.2 movement has a loud rotor noise and it wobbles like a 7750, I read in a blog that it actually comes from a family close to the 7750, so much for the wobble, but it is noisy, anyone out there ever come across this with longines watches, or that particular movement, thanks

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