A time-honored watch with clean lines and simple accents, this watch will never go out of style. Featured here in stainless steel with charcoal grey dial, rose gold-tone accents, sapphire crystal and date. Featuring our Eco-Drive technology – powered by light, any light. Never needs a battery. Caliber number E111. Product Details MODEL BM7251-53H 8/10/2017 MOVEMENT TECHNOLOGY E111 Eco-Drive Powered by any light source, continuously and sustainably, eliminating the need to replace watch batteries. BAND LENGTH (MM) 203.2 CASE WIDTH (MM) 41 LUG WIDTH (MM) 20 BAND TYPE Bracelet Stainless Steel CASE MATERIAL Silver-Tone Stainless Steel CRYSTAL Sapphire Crystal Superior scratch resistance and hardness CLASP Fold Over Clasp with Push Buttons DIAL Gray WATER-RESISTANCE WR100/10Bar/333ft [Swimming, Showering & Snorkeling] ADDITIONAL FUNCTIONS 3 Hand Date