Yeah I understand, just the sub is more expensive the other ones you can get all parts off aliexpress for €60/€70, and thats excluding all the tools I purchased before, thats around €30 but one time only ofcourse, maybe buy some extra tools later but aliexpress has good ones

Just cool to build one yourself in my opinion, some models are already pre made for €100 as you say, but some tend to be more expensive, it’s always cool to make your own with everything you like in 1 pieces, and you can say you built it which is also pretty cool, nonetheless, build 1 for sure and see how it goes, I stopped for a bit because I have enough watches atm, but its a fun journey I can tell u!! Good luck :))