MOVEMENT TECHNOLOGY: B612, Eco-Drive, Powered by any light source, continuously and sustainably, eliminating the need to replace watch batteries. BAND LENGTH (MM): 250.825 CASE WIDTH (MM): 42 LUG WIDTH (MM): 22 BAND TYPE: Strap Leather CASE MATERIAL: Silver-Tone Stainless Steel CRYSTAL: Mineral Crystal, Impact and shatter resistant CLASP: Buckle DIAL: Blue, Luminous Hands and Markers WATER-RESISTANCE: WR100/10Bar/333ft [Swimming, Showering & Snorkeling] ADDITIONAL FUNCTIONS: 1/5 Second Chronograph Measures up to 60 Minutes 12/24 Hour Time Date