Sundial.

2 parts. Simple, simple.

Pendulum clock.

~AA

Water clock, epic win. Basically two cups where one drains into th other with a small hole. You put lines on it that say how long it's been.

55555

Sundial.

Or a good o' fashoined wind-up clock. =D

-M-

Well, a weighted system was my first idea, didn't work, and a pendulum was my second idea. Also didn't work. A sundial isn't capable of recording times as small as 10 seconds, so that's out too. Presently, I've found myself working with something like an hourglass. I hope it works better than my other ideas.

The Argetlam