The Seiko Prospex Solar SNE599P1 is a spectacular solar powered diving watch.  

With it's 41.0mm diameter case (excluding crown) and 11.mm thickness the SNE599P1 is a very comfortable diving watch that is sure to stand out. The date window will ensure daily comfort. Of course the watch is water resistant to 200m and the extremely legible dial is protected by a sapphire crystal. The movement powering all this is the Seiko Cal. V157 movement, which is solar powered with a battery life up to 10 months. The case and bracelet have a durable black coating.