SEIKO believes that the wristwatch is a rewarding accessory. The best watches live in harmony and interact with the wearer, and their functions offer a reassuring and expressively satisfying bond. This watch's features and benefits include: Seiko Solar. Stainlees steel case & bracelet. Black dial. Hardlex crystal. Push button release clasp. Snap down case back. No battery change required and powered by all types of light.100 meter water resistant.