SLA printing services also provide a pretty cheap option (Shapeways or dirtySLA). You can also print (and then fire) ceramic parts printed with SLA printers (Vi

SLA printing services also provide a pretty cheap option (Shapeways or dirtySLA). You can also print (and then fire) ceramic parts printed with SLA printers (Vitrolite), I'm not sure very small parts would work well however. Milling services are also available (and not super expensive in China) but the parts are very small, and there are a lot of them so it might not be a easy option. The idea of printing the entire movement is certainly interesting though...