Omega Caliber 9908 Watch Movement

Manufacturer	Omega
Caliber Number	9908
In-House?	Yes
Movement Type	Mechanical, manual-wind
Display	Analog
Jewels	44
Beats Per Hour	28,800 vph, 4Hz
Lift Angle	Unconfirmed, 39 degrees? (use Co-Axial compatible timing machine)
Power Reserve	60 hours (two barrels)
Shock Protection	Nivashock
Escapement	Co-Axial
Balance Spring	Si14 silicon
Anti-Magnetic?	Yes up to 15,000 gauss
COSC?	No
Chronometer?	Yes (Omega Master Chronometer spec)
Hacking?	Yes
Hand-Windable?	Yes
Functions	Central hours, central minutes, central chronograph seconds, small running seconds at 9:00, chronograph 12 hours and 60 minutes counter subdial at 3:00
Country of Manufacture	Switzerland, Swiss made
Known Models	Speedmaster Chronoscope Co-Axial Master Chronometer Chronograph 43mm (ref: 329.30.43.51.03.001, 329.32.43.51.03.001, 329.30.43.51.02.001, 329.33.43.51.02.001, 329.30.43.51.02.002, 329.32.43.51.02.001, 329.92.43.51.10.001

The Omega calibre 9908 is a manual wind mechanical chronograph movement that was released in 2021. It is Swiss made with 44 jewels. This movement features an anti-magnetic hairspring, Co-Axial escapement, twin barrels, and a column wheel chronograph system.

Some of the topics covered in this caliber listing:

Speedmaster Chronoscope Features:

The Omega caliber 9908 is found in Omega’s Speedmaster Chronoscope line of watches introduced on September 23, 2021. With all the press this piece has garnered upon release, collectors see a full list of functionality, but few take time to acknowledge where that functionality comes from: Not the movement. Many of the features on the Chronoscope have more to do with the dial and bezel design rather than the complications in the 9908 movement.

Movement Features:

Bi-complex chronograph – two chrono counters side-by-side
Column wheel chronograph system
Double/twin barrels coated in DLC – extended power reserve
Certified Master Chronometer – Omega’s own chronometer spec
Full main plate with Geneva waves that spawn from the balance wheel rather than the center of the bridge

Watch Features:

In conjunction with the standard chronograph functionality, the dial and bezel designs give the Speedmaster Chronoscope the following functionality…

Tachymeter (bezel) – ability to measure speed based on distance traveled
Telemeter (outer ring on the center of the dial) – ability to measure distance based on the speed of sound
Pulsometer (inner ring on the center of the dial) – ability to measure a human heartbeat

Snail Dial:

The Telemeter and Pulsometer are displayed in a snail-like layout that creates a central spiral on the dial (other brands offer this design as well). The three features listed above are where Omega gets the basis behind the name Chronoscope.

In Omega’s Own Words:

“The word Chronoscope blends two traditional Greek expressions. “Chronos” meaning time and “Scope” meaning to observe. The tool typically measures the duration between two points or events.” –source

The Omega Speedmaster Chronoscope is not the only Omega watch with the word Chronoscope in the name. Omega also has a DeVille Chronoscope. Omega is not the only brand to use the word Chronoscope. There is also a Chronoswiss Chronoscope, Junghans Max Bill Chronoscope, Seapro Chronoscope, etc.

Setting the time:

The hour hand on the 9908 is set independently (great for changing time zones quickly without affecting the minutes). Pull the crown out one click to set the hour, pull it out two clicks to set the time.

In Omega’s Own Words:

“Manual-winding chronograph with column wheel and Co-Axial escapement. Certified Master Chronometer, approved by METAS, resistant to magnetic fields reaching 15,000 gauss. Silicon balance-spring, 2 barrels mounted in series, time zone function. Central hour, minute and chronograph seconds hands, small seconds counter, 12-hour and 60-minute counter. Rhodium plated finish with Geneva waves in arabesque.” –source

Replacement Prices:

The Omega caliber 9908 is an in-house movement and not available for individual purchase, even for Swatch Group parts accounts. At the time of this post, the retail prices of the watches this movement powers ranges from $8,300 USD to $14,000 USD.