The CITIZEN Promaster Marine BN0167-09W is a limited-edition professional dive watch inspired by the shifting colours of the ocean. Its unique structural-colour dial creates vivid blue-green to blue-purple hues depending on the angle of light. Powered by Eco-Drive technology and built to ISO 6425 diving standards, it offers reliable performance both underwater and for everyday adventures. The watch is limited to 8,700 pieces worldwide.