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The Quantum Leap in Swiss Watchmaking: Omega's Revolutionary 9920 Movement
In a notable advancement that might not casual enthusiasts but captivates the hearts of watch aficionados, Omega recently unveiled its latest creation - the 9920 movement. This groundbreaking development features an adjustable silicon balance spring that reduces dly deviation to an unbelievable ±2 seconds. A seemingly minor tweak, this innovation marks a significant milestone in the horological industry.
Text by Huang Hanming
With the COSC certification, which is achieved through rigorous testing by the Swiss Official Chronometer Testing Institute COO with the maximum allowable variation of -4 to +6 seconds per day, Omega's watches already stand out for their precision. However, the METAS chronometer certification that Omega's watches pass goes beyond this standard – it necessitates an even more stringent criterion, requiring a deviation between ±5 seconds dly.
This incremental improvement might not be immediately apparent in everyday use, but it represents a monumental leap forward when considering how much effort major watch brands invest to achieve mere seconds of accuracy. The 9920 movement's remarkable precision of just ±2 seconds per day pushes the envelope to new heights.
The secret behind this achievement lies in Omega's Spirate silicon balance spring system. A key innovation by Swatch Group, Rolex, and Patek Philippe - three titans of horology – silicon springs have been a game-changer due to their non-magnetic properties, resistance to oxidation, lightness, durability agnst wear and tear, as well as immunity from temperature fluctuations and fatigue issues.
However, one significant drawback of silicon balance springs is that they are semiconduct through etching on a monocrystalline wafer. This limits the ability for after-manufacturing adjustments since adjustments can only be made through physical manipulations on the bridge where the oscillating weight is situated with a movable adjustment mechanism providing a ±2.5 second range.
The Spirate system, Omega's innovation, combines these silicon springs with an adjustable mechanism that enables fine-tuning without compromising on their core advantages. An adjustment screw mounted on the pivot bridge allows for precise adjustments to the balance spring's tension within a narrow 0.1-second interval between +2.5 seconds and -2.5 seconds.
The 9920 movement first made its debut in the Omega Speedmaster Super Racing Chronograph, designed as an homage to this innovation by the iconic brand. The watch features a dark gray dial with white hour markers and hands, offset by red accents on the chronograph registers and the central chronograph hand. The case is made of stnless steel and fitted with a brown leather strap or black rubber strap.
It's noteworthy that while the Spirate silicon balance spring system and the 9940 movement may currently be showcased in this one model, we expect to see more applications in Omega's other watch collections moving forward.
Omega
Huang Hanming
Editor for Watches Jewelry
A seasoned writer with a flr for crafting s on luxury goods. Having previously contributed articles to reputable publications like The Strts Times, Girlfri, Icon, Citta Bella, and Lianhe Zaobao, I've recently honed my focus on watch and jewelry coverage, finding it lessly fascinating as each piece of fine craftsmanship tells a tale intertwining artistry, design, culture, history, economics, technology, and countless captivating stories.
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Omega 9920 Movement Precision Adjustable Silicon Balance Spring Technology METAS Chronometer Certification Innovation Omega Speedmaster Super Racing Chronograph Release Spirate System in Watchmaking Advancement Swiss Watch Industry Quantum Leap