cant reach my watch

[nemesis123]

I dropped my watch to a narrow and very tiny hole in my house. 2 meters deep and 10 cm wide. I can see the watch there but cant really reach it. Today, I purchased a small magnet and attached it to a rope to pull it from there, but i guess the watch does not have a lot of iron in it, I could only make it move a little but cannot pull it. Normally this piece of magnet is very strong, as I had hard time taking it off from the ladder I was using.

Now, I am thinking of getting a 5 times bigger magnet (10cmx5cmx4 cm), but do you think this will damage the watch, I am asking because I know that magnets can damage some stuff. I have always been bad at psychics and chemistry, sorry if this sound silly.

Also, do you have any idea on how to pull a watch from a tiny hole?