What tools would I need?

[Chris_w666]

I have quite a few watches, most of them are sub £200 ones that I like and just don't see the point in parting with. The trouble is that leaving them sat in a drawer means they end up needing batteries, or I break the pins, or I find I have outgrown the straps and need that extra link putting back in.

What would I need to do these very basic repairs myself and save the hassle and cash of going to a watch repairer? I am not planning to any work to them and I wouldn't open one of my 2 good watches ever so probably don't need the most expensive kit available.