General General The watch-matic III is an easy, but precise instrument for testing mechanical watches. It is essential to be familiar with the instrument and its functions in order to obtain reliable results and to avoid damage to the watch under test.
4.1.1 Mains supply The watch-matic III is supplied from a mains adapter unit with an output of 9 V~ and a rating of 12 VA. The mains adapter is available for nominal mains voltages of 230 V~ (range 210 V~ to 240 V~) or 120 V~ (range 110 V~ to 130 V~).
Without any trouble you can keep the watch-matic III switched on for the whole day. The instrument will not show any wear and has very low power consumption.
Place the reference watch on the microphone. • Select the function SEL by means of the value key as soon as the watch-matic III finds the beat number for a rate which is zero. The last value of the beat number is now stored. •...
Operating The following information is not necessary for operating the watch-matic III, but can help to understand the functioning of the instrument and to interpret the displays correctly. 14.1 Beat noise of the watch...