Name: SPEEDMASTER RACING CO‑AXIAL MASTER CHRONOMETER CHRONOGRAPH
SKU: 596810

This Speedmaster Racing Master Chronometer model features a 44.25 mm stainless steel case with a black ceramic bezel ring that includes the famous tachymeter scale in orange wording and Liquidmetal™ numbers. The black leather strap is micro-perforated revealing an orange rubber interior.

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.

CASE

Total product weight (approx.): 185 g

Between lugs: 21 mm

Thickness: 14.9 mm

Case: Steel

Case diameter: 44.25 mm

Water resistance: 5 bar (50 metres / 167 feet)

DIAL AND CRYSTAL

Dial colour: Black

Crystal: Domed scratch‑resistant sapphire crystal with anti‑reflective treatment on both sides

MOVEMENT

Calibre: Omega 9900

Self-winding chronograph with column wheel and CoAxial 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.

Power reserve: 60 hours

FEATURES

Anti-magnetic
The movement is unaffected by exposure to strong magnetic fields, even those greater than 1.5 tesla (15,000 gauss).

Chronograph

The chronograph function is a mechanism for measuring time intervals. A chronograph watch can therefore be used to time events while displaying the time like any traditional watch.

Chronometer

Label given to a watch which has undergone precision tests and received a certificate from an official body (COSC).

Date

The day of the month, displayed in a window on a watch dial at the 3 or 6 o’clock position, or within a subdial at 9 o'clock.

Master Chronometer Certified

Guaranteeing the Swiss industry’s highest standard of precision, performance and magnetic-resistance, as set by the Swiss Federal Institute of Metrology (METAS).

Small seconds

A hand on a sub-dial which tracks seconds typically it completes a full rotation in one minute.

Tachymeter

A tachymeter watch has a function for measuring speed. It is a chronograph with a graduated dial on which speed can be read in kilometres per hour based on a 1000 metre distance.

Time zone function

Allows the hour hand to be easily adjusted to different time zones without stopping the watch.

Transparent case back

A transparent case back - frequently made of sapphire - makes it possible to see the movement inside the watch.

BRACELET

Strap type: Leather strap

Strap color: Black

Strap surface: Calf leather

Buckle type: Foldover clasp

Buckle material: Stainless steel

REF: 329.32.44.51.01.001