Haven't owned a watch in over 30 yrs, never wear any jewelry and the only metal I carry thru the detectors is stuff that was "installed" both with and without my express written permission.
. All the little things I take with me go into the plastic bins.
The wife, OTOH, will occasionally travel with some very expensive trinkets. She never takes them off or lets them get out of her sight. Never had any real problem going thru security; just sometimes gets an extra "wanding."