My son was recently given one of these craft kits for his birthday and it was really fun to do. My son is just 6 and he was largely able to do it all himself although I had to help him with placing the numbers - I think it would be useful if they included a numbers template.
He had to paint and decorate the wood clock face - Granny had chosen a sailing theme and also his name. The decorative pieces were already painted but my son had to paint the letters. All the paint, glue etc was included. We then attached the mechanism and hands and popped in the battery (which was included - it does annoy me when the children have made something and there is no battery - perhaps I am the only person who doesn't hoard batteries?!).
The clock is now hanging on his wall in his bedroom and he is really pleased with it.
I have to say I checked out their website to see if they had any others and they have several and they seemed reasonably priced.