Hidden issues! Repairing a used and abused Tissot Seastar - ETA 2846

Repair job on a Tissot Seastar A660/760K men's automatic watch with an ETA2846 movement, hoping to restore it to working order. The watch was purchased on auction and runs for a short time then stops. The watch cannot be wound very far without the mainspring snapping back. My assumption going into this was that I would discover a broken mainspring - however, it ended up being something else entirely... I am an amateur who enjoys restoring vintage watches to working order. Constructive critiques of the process are welcome. I am always learning. Contact info: [email protected] Many of my tools I use are affordable. If you're interested in getting started with watch repair and would like to use what I use, I've included some links below. I earn a small commission from Amazon if purchases are made using these links. Useful Texts: Watch Repairer's Manual: https://amzn.to/3knrwdG Watchmaker's Lathe: https://amzn.to/3D02WGb Tools: Movement Holder (pocket watches): https://amzn.to/3H9JBUv Movement Holder (wrist watches): https://amzn.to/3JeG2iv Ceramic Tipped Tweezers: https://amzn.to/3QP1qMH Finger cots: https://amzn.to/3CXbXzJ Micrometer: https://amzn.to/3QNGN3C and Stand: https://amzn.to/3iIyF86 Rodico: https://amzn.to/3kr5RBb Tweezers: https://amzn.to/3GNFEVi 10X Loupe: https://amzn.to/3iLfome Levers: https://amzn.to/3XB4RZG Demagnetizer: https://amzn.to/3ZINUhS Screwdrivers: https://amzn.to/3Xr7gqo Cleaning: Mesh Baskets: https://amzn.to/3ITqikE Ultrasonic: https://amzn.to/3wcO7wg Mason Jars: https://amzn.to/3WkUfgB Cleaning Solution: https://amzn.to/3XwQ16I Rinsing Solution: https://amzn.to/3wdgAlA Cleaning Brushes: https://amzn.to/3QPnSp8 Lubrication: Oilers: https://amzn.to/3Xi8LXR DX Grease: https://amzn.to/3ZO0kVU Moebius 941: https://amzn.to/3Hf6g2X Moebius 9010: https://amzn.to/3CVGM7Y Moebius D5: https://amzn.to/3ITqikE Buffing and Polishing: PolyWatch: https://amzn.to/3XlVTja Polishing Compound: https://amzn.to/3QQ1r33 Chapters: 0:00 Intro and Disassembly 5:15 Hammer Time 6:00 Reassembly 12:35 Shock Springs 15:05 Reassembly Cond 20:00 Casing -- Almost in F - Tranquillity by Kevin MacLeod is licensed under a Creative Commons Attribution 4.0 license. https://creativecommons.org/licenses/... Source: http://incompetech.com/music/royalty-... Artist: http://incompetech.com/