Men's Casual Crystal Watch Color: Grey Imported Precise Japan Quartz Movement - Accuracy: +/-20 seconds per month Resin Case and Band, Stainless Caseback 3 Hand Analog Display Battery SR621SW, Approx. battery life: 2 years, Module 705 Module 705, Size of case / total weight: 37.5 x 35.0 x 7.5mm / 19g