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If this hand moves several times per second or appears to sweep along in a smooth, continuous motion, your watch is most likely mechanical and its precision can be measured by cette application.  If you can hear a ratcheting sound as you turn the crown, your watch is most likely mechanical and its precision can be measured by cette application.  cette application can automatically determine the frequency of the watch being measured based on eight of the most common frequencies used in mechanical watches.  If the words "automatic" or "shock-proof" are written anywhere on the watch, there is a very high chance that your watch is mechanical and its precision can be measured by cette application.  There are four simple ways to determine if your watch is mechanical and can be used with cette application.  cette application analyzes the precision of mechanical watches against the iOS system clock using a microphone.  If the hand moves only once every second, it is very likely that your watch is not mechanical.  The regularity of this sound can be measured against the more precise, internal time-signal of iOS devices, such as the iPhone, and the resulting difference in timekeeping is displayed by cette application.  If the crown turns smoothly, your watch is not mechanical.  If the word "quartz" is featured anywhere on the watch, your watch is not mechanical.  These frequencies are standard among low-, middle- and high-grade mechanical timepieces and will accommodate the vast majority of mechanical watches produced in the past 100 years.  cette application works best with an external microphone that has an excellent frequency response between 10,000 and 20,000 Hz.  If your watch has a hand that indicates the seconds, observe how frequently it moves.  Turn the crown, that is used to set the hands of the watch, while it is pressed fully in.  A portion of the energy used during this starting and stopping motion is released as acoustic energy, resulting in an audible "tick-tock" sound.  All mechanically regulated watches are designed to start and stop 1000s of times every hour.  Look at the text on your timepiece.  Place the watch close to your ear and listen.  If you hear a noise approximately once every second, it is unlikely that your watch is mechanical.  If you hear a constant ticking noise, your watch is very likely a mechanical watch and its precision can be measured by cette application.