This is an automatic self-winding mechanical timepiece with 21-jewel movement visible through on-dial aperture and exhibition caseback. In stainless steel with two-tone rose-gold and silver ion-plated finish, domed crystal, patterned brown dial, luminous hands and markers, second hand, screw-back case, double-press deployant closure, and water resistance to 30 meters. Diameter: 45.0mmThickness: 13.5mm