OMEGA Speedmaster Dark Side of the Moon

Omega's Speedmaster Dark Side of the Moon, reference 310.92.44.51.01.004, is a chronograph with a 44.25 mm black ceramic case. Thickness runs to 15.09 mm and lug to lug measures 50 mm. A scratch-resistant sapphire crystal with anti-reflective treatment on both sides covers the black dial. Inside is the self-winding calibre 9900, a Master Chronometer movement with column wheel and Co-Axial escapement, certified by METAS and resistant to magnetic fields up to 15,000 gauss. Two barrels mounted in series give it 60 hours of power reserve, and the display back shows the rhodium-plated finish with Geneva waves. Small seconds and a tachymeter scale complete the dial. The black rubber strap closes with a foldover clasp, and the ceramic case carries a 50 metre water resistance rating.