“The Temperature In this particular laboratory is held at 21°C and also the humidity at 45 per cent,” describes Sylvain Jeanneret, the man who heads up the eight-powerful workforce for the Patek Philippe lab in Neuchâtel, from guiding his white mask, which is only one part of his head-to-toe masking. https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/