Speedmaster '57 Chronograph " The 1957 Triology "

Brushed & polished stainless steel case.Brushed & polished stainless steel bezel with a tachymeter scale.Black 'tropical' dial.Vintage colored luminous index hour makers.Printed minute/seconds & fractions of a second track on dial edge.Polished hands, the Broad Arrow style hour & minute hands with vintage colored luminous fill. Small seconds sub-dial counter at the 9 o'clock position.Chronograph/Stopwatch function:Central seconds hand counter.30 minute sub-dial counter at the 3 o'clock position.12 hour sub-dial counter at the 6 o'clock position.Omega's classic caliber 1861, rhodium plated, beats at 21,600 vph, contains 18 Jewels & has an approximate power reserve of 48 hours