A Seiko Electra 360 Unbreakable Mainspring for 9.99 why not. I think I got my money’s worth. Here are some before and after pictures.
After cleaning it up.
Surprisingly it is very accurate for not knowing anything about it. Where it came from or if it’s been serviced, there are no service markings on the inside. Now I got to get a psychedelic t-shirt maybe some yellow-tinted sunglasses, and a sun visor that says Las Vegas on it, you see where I’m going?
What do you think?