- TAG Heuer quartz movement, one of the most reliable and accurate made in Switzerland
- Powered by a battery
- Regulator (time-measuring device): quartz crystal.
- Electrical current that causes the crystal to vibrate very consistently and at a very high frequency (32,768 times per second).
- Almost perfect precision (a variation of only a few seconds per month.)
TAG Reference #WA21110.FT8023