OMEGA SEAMASTER DIVER 300M REF. 212.30.41.20.01.003 Steel Black Co-Axial Automatic Cal. 2500d

Brushed/Satin finished stainless steel case with polished finished beveled edges.
Brushed finished stainless steel bracelet with polished finished narrow connecting links.
Bezel:
Brushed steel.
Black ceramic fill.
Satin finished steel numbers & indexes.
Black lacquered-like dial.
Applied bold polished steel rimmed dot & index hour markers with luminescent fill.
Fine printed minute track on dial edge.
Polished steel skeleton hands with luminescent filled tips.
Date window displayed at the 3 o'clock position
Helium Escapement Valve located on the edge of the case at the 10 o'clock position
Slightly domed sapphire crystal.

Movement:
Omega caliber 2500 d, beats at 25,200 vph, contains 27 Jewels & has an approximate power reserve of 48 hours.
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.