1974 Citizen Chronograph TV Screen ref. 4-901070 Y. Automatic flyback movement cal. 8110A.

The movement is automatic with hand winding capability, 23 jewels beating at 28.800 bph, fly-back function with column wheel and day and date indicator. The flyback function means that you can reset the chronograph while in motion and it will start again without needing to go the entire process of pressing stop-reset-start. So, one push can do all of this. How does Citizen do it at this price?