I just wanted to point out the Nomos Tangente Ref. a hundred and one is water-proof to 30m, not 100m. It doesn’t detract in any way from it though. It’s a beautiful timepiece! Quartz Movements: Quartz watches are run by a battery and provide precision and simplicity of use unmatched https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/