MOVEMENT:�Japanese OS 20 Quartz Movement CASE DIAMETER: 47mm�X 31mm THICKNESS: 9mm DIAL COLOR:�Black Dial with Stick Markers CASE MATERIAL: Solid Stainless Steel 316L (Polished) BRACELET: Leather Strap with Tang Buckle FRONT GLASS: Synthetic Sapphire BACK GLASS: Solid Case Back BEZEL:� HACK MOVEMENT: CLASP TYPE: Patek signature buckle DATE INDICATOR: GMT HAND: