Handwound chronograph movement with column wheel mechanism and Co-Axial Escapement for greater precision, stability and durability of the movement. Free sprung balance, with hour, minute and continuous small seconds hand, central chronograph hand. Based on PIquet 1285.
All watches using this caliber:
522.214.171.124.04.002 Omega Museum Collection N° 10 Olympic Official Timekeeper Co-Axial Chronograph Yellow Gold