Omega Caliber 2201A: Reliable Quartz for Refined Omega Classics

The Omega Caliber 2201A is a Swiss-made quartz analog movement, introduced as part of Omega’s updated 2200-series. A direct successor to the earlier Caliber 2200B, the 2201A incorporated minor technical refinements, including improved power efficiency and circuit reliability, while maintaining the same compact dimensions and durable design.

It was created to meet demand for slim, accurate quartz movements in Omega’s De Ville, Constellation, and Seamaster lines, during a time when quartz watches remained a popular and prestigious choice for professionals and frequent travelers.

Technical Specifications

• Type: Quartz analog

• Functions:

  • Hours, minutes, central seconds

  • Date display at 3 o’clock (quickset)

• Jewels: 7

• Frequency: 32,768 Hz (standard quartz oscillator)

• Battery: 371 (SR920SW)

• Battery Life: Approximately 2–3 years

• Accuracy: ±15 seconds/month

• Hacking Seconds: Yes

• Quickset Date: Yes

• Finish: Rhodium-plated bridges with compact, shock-resistant design

Though mechanically similar to the 2200 and 2200B, the “A” suffix on the 2201A denotes a revision, typically referring to updated internal circuitry and optimized power management.

Watches Featuring Caliber 2201A

The 2201A was housed in a variety of Omega quartz models from the 1990s to early 2000s, including:

• Omega De Ville Quartz (men’s and mid-size references)

• Omega Seamaster Quartz dress models

• Omega Constellation Quartz (non-chronometer versions)

• Select ladies’ quartz watches requiring thin movements

These watches typically featured:

• Slim stainless steel or bi-metal cases

• Elegant dials with Roman numerals, baton markers, or guilloché textures

• Compact diameters, often between 32–36 mm

• Sapphire crystal and push-pull crown

• 100-meter water resistance on sportier cases

Performance in Daily Use

Omega designed the 2201A to meet the needs of modern users who preferred hassle-free accuracy in a luxurious, understated package. Its key benefits include:

• Low maintenance—just change the battery every few years

• Reliable timekeeping that stays within 15 seconds/month

• Quick and easy time/date setting

• Durable build, suited for daily wear and occasional water exposure

Thanks to its efficient quartz oscillator, it offered a highly stable rate unaffected by temperature or motion—ideal for professionals, travelers, and collectors who don’t wear a watch daily but still want precision when they do.

Servicing and Longevity

The 2201A remains a very serviceable movement today. Maintenance needs are minimal:

• Battery changes every 2–3 years

• Gasket replacements for water resistance

• Movement inspection every 5–7 years by a certified watchmaker

If the circuit or LCD (in applicable variants) fails, replacement movements or donor parts may still be sourced through Omega service centers or vintage parts dealers.

Final Thoughts

The Omega Caliber 2201A exemplifies the brand’s ability to create refined, precise quartz movements during the height of the quartz era. Though overshadowed by Omega’s mechanical icons, the 2201A still powers many elegant, reliable watches that deliver everyday luxury without fuss.

For collectors and enthusiasts seeking an authentic Swiss Omega with quartz dependability, the 2201A remains an excellent—and often overlooked—choice.