MOVEMENT:�Japanese Quartz OS20 Working Chronograph Movement CASE DIAMETER:�42mm THICKNESS:�14mm� DIAL COLOR:�White�Dial,�Lumed Hour Markers and Needles CASE MATERIAL:�Brushed SS 316F Caseset, BRACELET:� Stainless Link Bracelet with Insignia Double Deployant Clasp, Double Release Catch FRONT GLASS:�Sapphire Crystal�(Please note Genuine Watch does not have AR Coating) BACK GLASS:�Solid Caseback with Serial Engraving CLASP TYPE:�Double Deployant Clasp BEZEL:�Smooth�Bezel