I currently have a 42mm space gray Series 1 Apple Watch. I desperately want a series 4 but I want to sell mine on eBay first. How much do you think I could get for it. It’s fully functional except for the rubber gasket in the crown came out so it might not be water proof anymore. Also the screen is very scratched up. I hope to get around $100. I also have a woven nylon band and the original box.