A Threaded Watch Back -- Tiny and Tricky Threads

Making a threaded watch back with tiny and tricky threads was not easy. I needed room for an O-ring as well, so there wasn't a whole lot of room for threads. I didn't get a working version the first time around either. Support me on Patreon: https://patreon.com/johnsl * Part 1: https://youtu.be/WsUpLqfBhVM * Part 2: https://youtu.be/z5yi1x_k4_I * Part 3: https://youtu.be/ZdXsC1bjBbQ * Making Tiny Custom Threads for a Custom Watch Back: https://youtu.be/sXuVPorVPt4