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.
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
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
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
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.
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
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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