“The Temperature in this laboratory is kept at 21°C as well as humidity at forty five per cent,” clarifies Sylvain Jeanneret, the man who heads up the 8-robust team with the Patek Philippe lab in Neuchâtel, from driving his white mask, which is just one Component of his head-to-toe covering. https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/