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Omega Caliber 8520 LAdies Automatic Watch Movement

Omega Caliber 8520

Omega Caliber 8520 LAdies Automatic Watch Movement

Caliber Number8520
Movement TypeAutomatic
Power Reserve50 hours
Vibrations Per Hour25,200bph
HairspringSilicon Si14
Shock SystemNivachoc
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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