...without the numbers (as Daos wrote). But pretty sure it's 60's and the movement is most likely GP's version of the AS Alarm movement of that time - AS1475?
Also, the GP vintage alarm that keeps popping up is the model with the digital type display above the 6 indicator. The version I posted in SS also always seems to come up in YG but again the former seems the more prevalent piece. I will attempt this weeke...