Omega 1456A

Omega Caliber 1456A: Enhanced Quartz Precision for Elegant Timepieces

The Omega Caliber 1456A is a Swiss quartz analog movement introduced as an upgrade to the 1456 caliber, designed to deliver even greater accuracy and efficiency. This movement continued Omega’s tradition of blending Swiss craftsmanship with modern quartz technology, ensuring wearers enjoy both style and precise timekeeping.

Primarily used in Omega’s De Ville, Constellation, and select Seamaster quartz models, the 1456A offers extended battery life and reliable performance, making it ideal for both everyday and formal watches.


Technical Specifications

  • Type: Quartz analog

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

  • Jewels: 6

  • Battery: 364 (SR621SW)

  • Frequency: 32,768 Hz

  • Accuracy: ±10 seconds/month

  • Power Reserve: Approximately 2.5 years

  • Quickset Date: Yes

  • Hacking Seconds: Yes

  • Dimensions: Approx. 18.2 mm diameter, 2.5 mm thickness

  • Finish: Rhodium-plated plates with modular design

The 1456A incorporates improvements in energy efficiency and circuit stability, resulting in a longer battery life and consistent timekeeping accuracy.


Watches Featuring Caliber 1456A

Omega equipped various models with the Caliber 1456A, including:

  • Omega De Ville Quartz watches

  • Omega Constellation Quartz (non-chronometer references)

  • Omega Seamaster Quartz dress and sport models

  • Select regional editions, especially in Europe and Asia

These watches typically feature:

  • Case sizes between 32 mm and 36 mm

  • Stainless steel, gold-plated, or two-tone cases

  • Elegant dials with applied indices or Roman numerals

  • Date windows positioned at 3 o’clock

  • Sapphire or mineral crystals depending on the model


Performance and User Experience

Owners of watches powered by the 1456A benefit from:

  • Highly accurate timekeeping within ±10 seconds per month

  • Smooth, quiet operation with hacking seconds and centrally mounted seconds hand

  • Convenient quickset date for easy calendar adjustments

  • Extended battery life averaging around 2.5 years, reducing maintenance frequency

These features make the 1456A a practical and refined choice for those seeking a reliable Swiss quartz watch.


Maintenance and Servicing

The Caliber 1456A is low-maintenance but requires:

  • Battery replacement every 2 to 3 years

  • Gasket and seal checks to maintain water resistance

  • Availability of spare parts and donor movements through Omega service centers and vintage watch specialists

Regular servicing preserves its longevity and accuracy.


Collector Appeal

Though quartz movements may be overshadowed by mechanical calibers, the 1456A attracts:

  • Collectors interested in Omega’s quartz evolution

  • Buyers seeking reliable and elegant vintage Swiss watches

  • Enthusiasts of late 1990s watchmaking technology

  • Those looking for a balance of style, precision, and convenience


Final Thoughts

The Omega Caliber 1456A exemplifies Omega’s dedication to precision, durability, and sophistication during the quartz era. With improved battery life and stable performance, it remains a solid choice for collectors and watch enthusiasts who value Swiss quartz craftsmanship in a timeless design.

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