With a sophisticated design, the Jazzmaster Auto is a contemporary timepiece to suit your day from business time to night-out. Powered by an automatic movement that features a hairspring made from the new anti-magnetic alloy NivachronTM, this 40mm watch keeps precise time all week long. Stainless steel case with a black leather strap, black dial. Automatic movement. Case size 40mm. Water resistance upto 50 meters. Sapphire crystal. Pin buckle. Specifications Case Material: Stainless Steel Case S Hamilton Jazzmaster, Hamilton Watch, Watch Roll, Bracelet Cuir, Design Language, American Classic, Black Case, Leather Buckle, Black And Silver