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Omega Caliber 8520 LAdies Automatic Watch Movement

Omega Caliber 8520

Omega Caliber 8520 LAdies Automatic Watch Movement

BrandOmega
Caliber Number8520
In-HouseYes
Movement TypeAutomatic
Jewels28
Power Reserve50 hours
Vibrations Per Hour25,200bph
HairspringSilicon Si14
Shock SystemNivachoc
Escapement
Co-Axial
FeaturesHours, minutes, date at 3:00
Country of ManufactureSwitzerland
Known Models37.5mm Planet Ocean, Ladies Constellation, 34mm Aqua Terra (add yours in the comments below…)

The Omega caliber 8520 is an in-house automatic movement found in smaller ladies and mid-size Omega watches.

In Omega’s own words:

Self-winding movement with Co-Axial Escapement for greater precision, stability and durability. Free sprung-balance system with silicon balance-spring. Automatic winding in both directions to reduce winding time. Rhodium plated finish with exclusive Geneva waves in arabesque.

Omega Caliber 8520 Coaxial

Watches with this movement:

At the time of this post, Omega has 164 models with the caliber 8520. The image above is an 8250 example from a ladies 31mm Constellation watch. Some other models include:

  • Aqua Terra (30mm)
  • Aqua Terra (34mm)
  • Constellation (27mm)
  • DeVille Ladymatic (34mm)
  • Planet Ocean (37.5mm)

Video Manual:

Additional Resources:

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