Not extensive after the brand started out up in Englesbrand, they moved on to Pforzheim the place they’d begin to develop Bauhaus-design wristwatches nearly 20 years just before their peers at Junghans started their partnership with Max Invoice. RLX titanium is a quality five titanium alloy specifically chosen by Rolex. https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/