The Historical legacy in the Moonwatch includes a Hesalite crystal and an aluminum bezel with tachymeter scale. It features a stainless steel circumstance using a scratch-resistant sapphire crystal. It’s a hand-winding mechanical motion with 42 hours of electrical power. Georges Favre-Jacot was just 22 when he Launched his eponymous watch https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/