<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">mechanical watches</topic></authority><related type="broader"><topic>watches</topic></related><variant type="other"><topic>mechanical watch</topic></variant> <note xml:lang="en"><![CDATA[ Watches that use a clockwork mechanism to measure time with a  mainspring which gets wound and holds force which then goes on to power the balance wheel. The gear train transmits the force and also calculates the swings totaling the seconds, minutes and hours. ]]></note></mads>