For the ultimate classic vintage style, the Corso from Citizen features a 40mm gold-tone case made of stainless steel. The dial is an elegant champagne color, perfectly accented with the ash brown leather strap that rounds out the look. Advanced features include a day/date function, as well as Eco-Drive technology, so it is powered by light and will never require a battery. Product Details MODEL AW0092-07Q 1/15/2021 MOVEMENT TECHNOLOGY J800 Eco-Drive Ring Powered by any light source, continuously and sustainably, eliminating the need to replace watch batteries. BAND LENGTH (MM) 266.7 CASE WIDTH (MM) 40 LUG WIDTH (MM) 20 BAND TYPE Strap Leather CASE MATERIAL Gold-Tone Stainless Steel CRYSTAL Sapphire Crystal Superior scratch resistance and hardness CLASP Deployment Clasp with Push Buttons DIAL Blue WATER-RESISTANCE WR100/10Bar/333ft [Swimming, Showering & Snorkeling] ADDITIONAL FUNCTIONS 3 Hand Day / Date