OMEGA
310.92.44.51.01.004 Speedmaster
Round
Scratch‑resistant sapphire crystal with anti‑reflective treatment on both sides
Black ceramic
Black polished ceramic bezel featuring a tachymeter scale in Liquidmetal™
44.25 mm
21 mm
5 bar (50 metres / 165 feet)
15.09 mm
Black
Bevelled indexes; 18K white gold and are filled with light green Super-LumiNova (green emission)
Hour and minute hands in 18K white gold and are filled with light green Super-LumiNova (green emission); Central chronograph hand is PVD white gold plated and reveals a red tip
60 hours
Self-winding
Co-Axial Master Chronometer Calibre 9900
Rbber strap
Black
Ceramic foldover clasp