In addition to Amazon and Ebay, where you can find many tools and movements, below are a few specialized shops where you might find what you need.
- learnwatchmaking.com – I’m listing this one first as it has a small selection of core tools, which is useful for a beginner who might find the choice in other shops overwhelming
- https://www.cousinsuk.com – It is probably the shop I use most as it has the best selection of tools and offers a range of shipping options. Based in the UK, so a good choice for Europeans (for the moment).
- watch-tool.de – A good place to go for Europeans as it has a good selection and will have lower shipping and import fees
- esslinger.com – A great selection of tools and movements
- allwatchparts.com – A good place to find movements, including Chinese ones
- ofrei.com – A great selection, but expensive shipping outside the USA