5 Most Important Omega Calibres

Omega is one of the most ingenious brands prevailing in the market today. The brand significantly emphasises on technical elements and solutions, offering considerable benefit for regular use.

From the movements developed in association with others to the ones produced in-house, some calibres are indeed adored and coveted for their technical advancements.

Here are five of the most significant watch movements belonging to the latest Omega collection. Please continue reading to know about them.

1. Omega Co-Axial 2500

Introduced in 1999, the automatic calibre 2500 was the first Omega Co-Axial movement.

• The movement acknowledges the invention of George Daniel’s Co-Axial Escapement.
• The mechanism combines the chronometer escapement, lever escapement, and the conventional escapement designs.
• Eventually, it offers a higher precision level and longer maintenance.
• However, many collectors initially presumed that the timepiece would need no maintenance.
• But the fact is that the maintenance could be hardly expanded in the initial stages.

Omega made many technical refinements to Calibre 2500 and also, utilised a special lubricant.

Today, the Omega Co-Axial Calibre 2500 automatic movement is highly durable, requiring a lower level of maintenance.

However, the movement powers the Omega Seamaster Diver 300M and Omega De Ville Prestige.

2. Omega Speedmaster “Moonwatch” Calibre 1861

Omega made significant modifications to the movements housed within the iconic Speedmaster Professional “Moonwatch” over the years.

• However, an essential alteration made is ideally the pattern of controlling the chronograph functions.
• The Omega 321 is a conventional column-wheel chronograph; whereas, the Calibre 1861 movement is ideally cam switched.

On the contrary, the modern Calibre 1861 features many principles of the pre-moon era’s Omega 321.

The Omega Speedmaster Professional plexiglass version is powered by the Calibre 1861 movement.

3. Omega Master-Co-Axial Calibre 9300

The Omega Calibre 9300 Master-Co-Axial movement is typically considered as today’s Omega chronograph.

• However, the movement incorporates the significant aspects of the co-axial escapement and a column-wheel chronograph.
• It offers magnetic resistance up to 15,000-gauss.
• Omega fitted the movement 9300 inside the models having a case size of 43.5mm or more.

However, one interesting fact is that the chronographs with the Calibre 9300 feature the stop minute as well as hour on the right totalizer.

Few models that are powered by Omega 9300 include Seamaster Planet Ocean Chronograph and Seamaster Aqua Terra Chronograph.

4. Omega Master Co-Axial Calibre 8900

The Omega 8900 movement is the first movement that received certification from the Swiss Federal Institute of Metrology or METAS.

The COSC indeed test a watch’s precision in several temporal conditions. But no such test is carried out to imitate the natural wearing of a timepiece.

• METAS executes exactly these test processes.
• They simulate regular wear and tear and also test the water as well as magnetic resistance.

However, the Calibre 8900 is now equipped only in the Omega Constellation Globemaster models.

5. Omega Master Co-Axial Calibre 8520/8521

The Omega 8520 Calibre comes in a smaller size. Regardless, the movement provides incredible durability and accuracy.

• The brand also developed a ladies edition where it used solid gold parts.
• However, the Calibre 8521 displays a winding rotor and a gold balance wheel.

While the gold’s weight is dramatically higher than steel, this contributes a lot in a smaller calibre such as the 8521.

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