Hi Bruce
Omega introduced the Dynamic ( Geneve ) as a entry level time piece. The movement is of the highest quality same as used in Seamasters of the time. The 55x and 56x series are some of the best movements Omega ever made. Where Omega "cut corners" on this line is the case. The case was simple to manufacture very little hand finishing needed.
Over all a stunning looking watch and when you see the movement there is no disappointment.
Good Hunting
Bill Sohne