625 movement power storage time

Also referred to in the Swiss watchmaking industry as “Reserve de Marche,” today’s power reserve watches offer anywhere from 42 hours of power reserve and above. The Omega 625 watch movement was produced from 1973 to 1979, with a total of 2,410,000 units manufactured. The movement features manual wind functionality and is equipped with Incabloc Shock Protection. Is the movement originating from the 600-movements of the 60's? A lot of questions, hope you guys can answer at least some of them. 0404 and the 5 at the beginning suggests a ladies' piece but it was a gift for a man. The stability of the new machines allows manufacture of parts never possible to realise previously, though not without imposing new limits which lead us to transform existing movements.