/fa/ - Fashion

what do you think, could a spring drive movement be realized in a cheap(-ish) watch up to like $500, similarly to how even a cheap "pure" quartz movement only is off by a fraction of a second per day simply because of how it functions, or is it not as cheap to make a spring drive that runs accurately?
surely Seiko would never do it themselves, preserving that technology only for the high end models. but someone else once patents run out? let's assume that we'd be content with ±2 seconds per day.