Speedmaster Moonwatch Co-Axial Chronograph

Model #: 311.

Mens Watch | Automatic Movement

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RRP: £5,760


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Watch Specifications

Brand Omega
Series Speedmaster Moonwatch Co-Axial Chronograph
Model Number 311.
Size Mens
Case Material Stainless Steel
Dial Colour Black
Bracelet/Strap Alligator/Crocodile Leather Black
Clasp Push Button Folding Clasp
Movement Automatic - Chronometer
Bezel Fixed
Screw-down Crown No
Crystal Anti-Reflective Scratch Resistant Sapphire
Case Back Transparent
Water Resistance 100m/330ft
Diameter 44.25mm

Watch Description

Brushed/Satin finished stainless steel case with polished finished beveled edges.

Black bezel with Tachymeter Scale.

Matte black dial.

Applied white index hour markers with luminescent fill.

Printed white minute/seconds & fractions of a second track.

White hands with luminescent fill.

Chronograph Stopwatch functions:

Large central seconds hand counter with luminous tip .

Minute & hour counters are combined into a single sub-dial located at the 3 o'clock position.

Small continuous running seconds hand sub-dial located at the 9 o'clock position.

Date window displayed at the 6 o'clock position.

Slightly domed sapphire crystal.


Omega caliber 9300, beats at 28,800 vph, contains 54 Jewels & has an approximate power reserve of 60 hours - thanks to its twin barrels mounted in series.

Column-Wheel Chronograph - column wheel is visible from the transparent case back.

The movement features Omega's "Si 14" silicon balance spring, which contributes to the movements outstanding resistance to shock and to environmental disturbances and thus, to the watch’s chronometric performance.

The movement also features the now-standard Co-Axial Escapement which contributes to greater precision, stability & durability. The Co-Axial escapement has less friction & reduces the necessity of lubrication thus reducing the time required between servicing.

The combination of the SI 14 balance spring & the Co-Axial escapement makes for an extremely reliable & stable movement.

The rotor & visible bridges are decorated with a unique "arabesque" wave design finish.

This Watch has an alternate part number: