Racing Omega Co‑Axial Master Chronometer Chronograph 44.25 mm
Steel on steel

Description
This Speedmaster Racing Master Chronometer model features a 44.25 mm stainless steel case and bracelet with a black ceramic bezel ring that includes the famous tachymeter scale in orange wording and Liquidmetal™ numbers.
On the matt black dial, there is a distinctive racing style minute-track which gives the watch its name. There are also two subdials with blackened applied rings as well as a 6 o’clock date window that blends with the colour of the dial. The hands are a mix of varnished orange and white, while the arrowhead indexes are 18K white gold with white Super-LumiNova.
The watch is driven by the OMEGA Co-Axial Master Chronometer 9900, certified by METAS at the industry’s highest standard.
5-Year Warranty
All OMEGA watches are delivered with a 5-year warranty that covers the repair of any material or manufacturing defects. Please refer to the operating instructions for specific information about the warranty conditions and restrictions.
Features
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Anti-magnetic
The movement is unaffected by exposure to strong magnetic fields, even those greater than 1.5 tesla (15,000 gauss).
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Chronograph
Complicated watch with a function for measuring short time periods in addition to its function for permanently displaying hours, minutes and seconds.
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Chronometer
Label given to a watch which has undergone precision tests and received a certificate from an official body (COSC).
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Date
The day of the month, displayed in a window on a watch dial typically at the 3 o'clock or 6 o'clock position.
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Liquidmetal™
Liquidmetal is an alloy which is considerably harder than stainless steel yet bonds seamlessly with ceramics. The blended materials are particularly resistant to scratching and corrosion.
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Small seconds
A hand on a sub-dial which tracks seconds typically it completes a full rotation in one minute.
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Tachymeter
A tachymeter is an instrument for measuring speed. It is a chronograph with a graduated dial on which speed can be read off in kilometres per hour based on 1000 metres distance.
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Transparent case back
A transparent case back - frequently made of sapphire - makes it possible to see the movement inside the watch.
Technical Data
- Between lugs: 21 mm
- Bracelet: steel
- Case: Steel
- Case diameter: 44.25 mm
- Dial colour: Black
- Crystal: Domed scratch‑resistant sapphire crystal with anti‑reflective treatment on both sides
- Water resistance: 5 bar (50 metres / 167 feet)
The advantages of this Master Chronometer watch
Behind the elegance of every Master Chronometer timepiece is the highest level of testing: 8 tests over 10 days, to ensure superior precision and anti‑magnetic resistance. We’ve raised our standards. You can too.
A new look for your watch
Your watch and strap should go together perfectly, but that doesn't mean you can't experiment with different combinations. Why not mix things up and see what happens? You may discover a look that's as individual as you are.


CALIBER OMEGA 9900

Self-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 hand, 12-hour and 60-minute recorders. Rhodium plated finish with Geneva waves in arabesque.
- 60 hours
- Self winding

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