Mens Omega Seamaster Pro Chrono 41.5 mm diameter features: Satin/brushed finished steel case and bracelet with polished finished highlights. Black wave design dial with luminous tipped hands & hour markers. Chronograph/Stop watch functions: Seconds,Minute sub-dial at the 12 & Hour sub-dial at the 6. Small seconds hand sub-dial at the 9 O'clock position. Movement - Omega Caliber 1164.