What is the difference between a quartz watch and a mechanical watch?
A quartz watch utilizes an electronic mechanism and a quart crystal to provide a highly accurate time of day.  A mechanical watch is able to provide an accurate time of day based on a non-electronic mechanism.  Instead, a mainspring is used to provide energy to the mechanical mechanism
<START_INST>What is the difference between a quartz watch and a mechanical watch?<END_INST><START_CTX><END_CTX><START_A>A quartz watch utilizes an electronic mechanism and a quart crystal to provide a highly accurate time of day.  A mechanical watch is able to provide an accurate time of day based on a non-electronic mechanism.  Instead, a mainspring is used to provide energy to the mechanical mechanism<END_A>