Eco-Drive technology - runs on light never needs a battery. Silver-tone stainless steel bracelet bezel and case. Dark blue dial with dot hour markers and luminous three hands. Day of the month window at the 3 position. Blue gradient plated bezel with minute marks. Mineral crystal dial window. Push button fold over closure. Case thickness: 11.7mm. Case size: 43mm. Water resistant to 100 M.