I just needed to indicate the Nomos Tangente Ref. one hundred and one is water-proof to 30m, not 100m. It doesn’t detract whatsoever from it though. It’s a stunning timepiece! RLX titanium is a quality five titanium alloy specially chosen by Rolex. Like all titanium alloys, it is especially lightweight https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/