This watch has an eco-drive technology (recharged by any light source; never needs a battery) - This watch has a function: solar energyHigh-quality beige leather strap 19 cm in length and 16 mm in width with a buckleCase diameter: 31 mm, Case thickness: 6 mm, Case colour: p-pink and Dial colour: mother of pearlWater resistant: 5 bar. Weight: 19 gThis watch has Eco-drive technology (recharged by any light source; never needs a battery) -This watch has a function: Solar Energy