This movement seems to be one of the very last native AS movements before AS was integrated in to ETA. Its very unusual (for AS) naming scheme already reminds to that of ETA quartz movements, and the hairspring stud and simple regulating mechanism is exactly the same as of modern ETA movements.
This movement lacks any decoration and looks pretty cheap produced, but at least, the day
and date can be corrected fast in the middle crown position.
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