Omega 1255

Omega Caliber 1255: Reliable Automatic Movement for Sophisticated Watches

The Omega Caliber 1255 is an automatic mechanical movement produced by Omega in the 1990s. It belongs to the family of high-quality mechanical calibers based on the ETA 2892-A2 platform. The 1255 movement features Omega's modifications and finishing, ensuring accuracy, smooth operation, and robustness.

The movement has been used in various Omega collections, offering dependable performance and Swiss craftsmanship.


Technical Specifications

  • Type: Automatic mechanical

  • Functions: Hours, minutes, central seconds, quickset date

  • Jewels: 21

  • Frequency: 28,800 vibrations per hour (vph)

  • Power Reserve: Approximately 42 hours

  • Hacking Seconds: Yes

  • Diameter: Around 25.6 mm

  • Thickness: Approximately 3.6 mm

  • Beat Rate: 4 Hz


Watches Featuring Caliber 1255

The Caliber 1255 was incorporated into:

  • Omega Seamaster models

  • Omega De Ville watches

  • Select Aqua Terra editions

  • Other Omega lines requiring precise and reliable automatic movements

Typical watch features include:

  • Stainless steel, gold, or two-tone cases

  • Date windows at 3 o’clock

  • Sapphire crystals

  • Classic and sporty dial designs


Performance and Durability

The 1255 is known for:

  • Smooth automatic winding and efficient power reserve

  • High precision and stable timekeeping at 28,800 vph

  • Quickset date function for user convenience

  • Hacking seconds allowing precise time setting

  • Durable build suitable for daily wear


Maintenance and Servicing

Routine maintenance involves:

  • Servicing every 4–6 years

  • Cleaning and lubricating mechanical components

  • Replacement of worn parts as necessary

  • Water resistance checks and gasket replacements

Due to its ETA base, parts and service expertise are readily accessible.


Collector Appeal

Collectors appreciate the Omega Caliber 1255 for:

  • Its mechanical sophistication and reliability

  • Usage in popular Omega watches of the 1990s

  • Smooth operation thanks to a 4 Hz beat rate

  • Balanced design suitable for both formal and casual wear


Final Thoughts

The Omega Caliber 1255 is a dependable and refined automatic movement that highlights Omega’s dedication to precision and craftsmanship. It remains an excellent choice for collectors and enthusiasts seeking high-quality Swiss mechanical watches.

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