I took Horology 101 and Horology 103 classes from Horological Society of New York to figure out how difficult it is to disassemble and re-assemble a watch movement. BOND STRAPS: https://www.bondnatostraps.com SUBSCRIBE: https://bit.ly/3ejff1J Follow on Instagram: http://www.instagram.com/24hourstime Lugaro watch dealer website: https://www.lugaro.com Horological Society of NY website: https://hs-ny.org/ RELATED VIDEOS: DIY watch club assembly: https://www.youtube.com/watch?v=IH_1NCrBDh0 My wife tries to assemble a watch: https://www.youtube.com/watch?v=FFi82FPQpM8&t (Some of the above links are affiliate links. I am an Amazon, Jomashop, Gearbest, eBay, Phoibos and AliExpress Associate. If you make some purchases, we are paid a small commission from the companies in question. Thanks!)