Not that you asked, but that watch uses as ETA G15.211 quartz movement. ETA is a Swiss company that makes watch movements; they are almost always associated the mechanical movements and many high-end watch brands use mechanical ETA movements. ETA is much less known for their quartz movements. The vast majority of quartz movements are made in China, but companies like ETA and Ronda still make swiss quartz movements (Japanese companies like Casio, Citizen, Seiko, also make quartz movements). Quartz movements are much more accurate than mechanical ones because you just need to cut a quartz crystal to a given shape and run a current through it with a battery. The crystal vibrates at a consistent frequency that, with some gearing mechanisms, can be converted to dividing time into increments that we are used to (seconds, minutes, etc.).