Omega Seamaster Aqua Terra GMT Chronograph SS Grey Dial (30316)

30316 Omega Seamaster Aqua Terra Chronograph, stainless steel on a stainless steel bracelet, automatic calbire 9605, chronometer, chronograph, date window at 6 o'clock, black dial with index numerals, luminecent hands and plots, sweep second hand, display back case, water resistant to 150 meters, diameter: 44mm, thickness: 17mm, black omega strap included, like new with original box and papers dated Feburary 2018.


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More about Omega Seamaster Aqua Terra GMT Chronograph SS Grey Dial

This is a stainless steel Omega Seamaster Aqua Terra Chronograph It has an integral stainless steel Omega link bracelet with a double folding deployment clasp, and domed scratch resistant sapphire crystals with anti-reflective coatings. It has rectangular chronograph push buttons, a screw down winding crown with an Omega emblem, and there is a screw down exhibition sapphire display case back engraved with "AQUA TERRA – 150M/500FT – Si14," and hallmarks. The 44mm diameter Oyster-shaped solid three-body case, curved lugs, bracelet, and flat angled bezel, are polished/brushed. The dial is grey "teak-concept pattern" with an embossed vertical stripe pattern, and applied steel dart baton indices with luminous inserts around a perimeter minute/chronograph fraction-of-a-second scale to 60, with Arabic numerals every five seconds. It has dauphine steel hands with luminous inserts and a luminous arrow tip on the minute hand. There is a steel center sweep chronograph second hand with a luminous arrow tip, and a trapezoidal date aperture window is at the 6 o'clock position. There are twin recessed black subsidiary dials with luminous white markers, Arabic numerals, and steel hands, including a 24-hour GMT second time zone with a red GMT aluminum indicator hand that also serves as a running small seconds register at 9 o'clock, and there is a 12-hour chronograph totalizer at 3 o'clock. It has an Omega superlative chronometer rating, and it's water resistant to 150 meters/500 feet. It has a 60-hour power reserve at full winding, and the 17mm thick case, dial, and movement are all signed.

This Omega Seamaster Aqua Terra Chronograph has a mechanical automatic self-winding caliber 9605 column wheel chronograph with a Co-Axial escapement. It's rhodium plated with Geneva wave embellishment in arabesque on the rotor and visible bridges, and it's constructed with 54 jewels, and a shock absorber device. It has an Si14 silicon balance spring on a free sprung balance, twin barrels mounted in series, bi-directional winding, and the mechanism oscillates at a frequency of 28,800 vph (4 Hz).

The Omega Seamaster Aqua Terra Chronograph was originally introduced in 2003, and this watch was refreshed in 2018.