As most people know, Seiko is a Japanese company, not a Swiss company. But we are including the premium Seiko brands (like Seiko Astron, Seiko Prospex, Seiko Presage and Grand Seiko) on our website because they are made to the highest quality standards. Grand Seiko are the very best watches Seiko manufactures. They are among the finest watches in the world, bar none. Grand Seiko watches consists of three collections, the Elegance Collection, the Heritage Collection and the Sport Collection.