OMEGA’s Speedmaster Grey Side of the Moon is an innovative addition to the Speedmaster collection. With its grey ceramic case, sand-blasted platinum 950 dial, Moonwatch-style hands, ceramic bezel and tachymetric scale in white Super-LumiNova, this timepiece is not only ready for adventure but is stylish beyond compare. Reminiscent of its legendary predecessors, the Speedmaster Grey Side of the Moon has a 60-minute and 12-hour recorder at 3 o’clock and a small seconds sub-dial at 9 o’clock. OMEGA’s Co-Axial calibre 9300 can be seen through the bevelled sapphire crystal caseback. New to this model is the ceramic and titanium foldover clasp. Grey ceramic on Leather strap with foldover clasp 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.
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.
Total product weight (approx.): 106 g
Between lugs: 21mm
Lugtolug: 49.8mm
Thickness: 16.1mm
Case: Grey ceramic
Case diameter: 44.25mm
Water resistance: 5 bar (50metres / 167 feet)
Dial color: Grey
Crystal: Scratchresistant sapphire crystal with antireflective treatment on both sides
Strap type: Leather strap with foldover clasp
Strap color: Grey
Strap surface: Alligator leather
Strap underside: Nongrained calf leather
Buckle type: Foldover clasp
Buckle material: Ceramic