Watchmaker

A watchmaker is an artisan who makes and repairs watches. Since a majority of watches are now factory made, most modern watchmakers solely repair watches. However, originally they were master craftsmen who built watches, including all their parts, by hand. Modern watchmakers, when required to repair older watches, for which replacement parts may not be available, must have fabrication skills, and can typically manufacture replacements for many of the parts found in a watch.

Water clock

Buoyancy