Omega Speedmaster '57 Omega Co-Axial Chronograph 41.5 MM

REF : 331.90.42.51.04.001

"Product added 12/22/14 in our database "(3413 Days)

Watch info

Dial

Color

White

Indexes

Indices

Details

Applied blue toned index hour markers with luminescent fill, Blue toned OMEGA logo below 12 o'clock, Blue toned hands, the hour & minute hands with luminescent fill, Fine printed black minute, seconds and fractions of a seconds track around the outer rim, Lacquered white main dial, Recessed white sub-dials with a fine concentric circular pattern finished rims & flat center

Movement

Precision

Officially Certified Swiss Chronometer (COSC)

Power Reserve

60 Hours

Winding

Bidirectional automatic winding

Functions

Chronograph, Hours, minutes, small seconds, and date, Tachymeter scale

Jewels

54

Frequency

28,800 VpH (4 Hz)

Caliber

Omega 9300

Movement

Self-winding chronograph movement with column wheel mechanism and Co-Axial Escapement

Oscillator

Free sprung-balance with "Si 14" silicon balance spring

Case

Shape

Round

Diameter (in mm)

41.5

Material

Titanium

Crystal

Domed scratch-resistant sapphire crystal with anti-reflective treatment on both sides

Model Case

Brushed/Satin finished titanium with polished finished beveled edges, Transparent case back with sapphire crystal

Water Resistance

10 bar (100 metres / 330 feet)

Winding Crown

Polished titanium crown with notched edge for enhanced grip

Bezel

Brushed finished titanium bezel with engraved & black filled tachymeter scale

Bracelet

Material

Titanium

Clasp

Push Button Foldover Clasp

Bracelet

Titanium bracelet with brushed finished outer links, polished finished center links & edges

Complication

Date window displayed at the 6 o'clock position

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

Tachymeter scale on the bezel

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