“The Temperature During this laboratory is saved at 21°C and the humidity at 45 for every cent,” points out Sylvain Jeanneret, the man who heads up the eight-strong staff on the Patek Philippe lab in Neuchâtel, from behind his white mask, which is only one Section of his head-to-toe masking. https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/