Omega Caliber 9920 Watch Movement

Manufacturer	Omega
Caliber Number	9920
Base Caliber	9900
In-House?	Yes
Movement Type	Automatic, self-winding mechanical
Display	Analog
Diameter	32.5mm (needs confirmed)
Jewels	54
Beats Per Hour	28,800 vph, 4Hz
Lift Angle	Unconfirmed (use Co-Axial compatible timing machine)
Power Reserve	60 hours
Shock Protection	Nivashock
Escapement	Co-Axial
Balance Spring	Spirate System
Balance Spring Material	Si14 Silicon
Regulator	Graduated Tuner
Anti-Magnetic?	Yes (see below)
Chronograph System	Column Wheel
COSC?	Yes
Chronometer?	Yes (Omega Certified Master Chronometer spec)
Hacking Seconds?	Yes
Functions	Central hours; central minutes; central chronograph seconds; running seconds subdial at 9:00; 60 minutes and 12 hour chronograph counter at 3:00; date at 6:00
Finishing	Rhodium plated finish with Geneva waves in arabesque
Country of Manufacture	Switzerland, Swiss made
Known Models	Omega Super Racing Co‑Axial Master Chronometer Chronograph 44mm (Add your watch in the comments below…)

The Omega caliber 9920 is an automatic column wheel chronograph movement with 54 jewels and a beat rate of 28,800bph. This movement was released on January 26, 2023 in the Super Racing 44.25mm chronograph watch in the Speedmaster line.

Some of the topics covered in this caliber listing:

In Omega’s own words:

“Driving the Speedmaster Super Racing is OMEGA’s Co-Axial Master Chronometer Calibre 9920, complete with OMEGA’s new Spirate™ System. Both the movement and assembled watch undergo the industry’s strictest tests to guarantee the highest levels of performance, precision and magnetic resistance. ” –source

Spirate System:

The calibre 9920 is the first Omega movement to feature the brand’s new patent-pending Spirate System. Spirate being a portmanteau of spiral and rate. Omega describes this new technology as “a revolutionary new spiral that allows for ultra-fine rate adjustments to achieve certified precision of only 0/+2 seconds a day.” Read more on the Spirate System here.

Omega Spirate

Accuracy:

As mentioned above, thanks to the patent-pending Spirate System in the 9920, Omega claims that this caliber can be regulated to maintain an average accuracy rate of 0 to +2 seconds per day. The 9920 is a Certified Master Chronometer,
approved by METAS.

Anti-Magnetic Properties:

It used to be that the Omega caliber 8508 got all of the credit for being resistant to magnetic fields, but now most of the newer movements such as the cal. 9920 being discussed here, are anti-magnetic up to 15,000 gauss thanks to the silicon balance spring and materials that are not affected by exposure to magnetism.

Tribute 10 Datewheel:

Coinciding with the colorway of the Super Racing Speedy, the datewheel on the 9920 is black and yellow with a special font for the number “10”. Omega calls this Tribute 10 in honor of the Seamaster Aqua Terra >15,000 Gauss “Bumblebee” introduced at Baselworld 2013, 10 years ago (it is the watch powered by the 8508 mentioned above). This means that the datewheel for the 9920 is a specific part, but you may potentially be able to obtain a Tribute 10 datewheel in the future to mod an existing 9900 based watch. This still needs confirmed, and not that anyone would want to do that, but it may be a possibility.

Replacement Prices:

The Omega caliber 9920 is an in-house movement and not available for individual purchase, even for Swatch Group parts accounts. At the time of this post, this movement is only found in the Speedmaster Super Racing model with a retail price of $11,000 USD.