The Seiko Prospex GMT SBEJ009 is a great watch for men who love underwater exploration or traveling. You can wear it while scuba diving in the ocean or when you're on a business trip across different time zones. It has a sturdy stainless - steel case and a green dial that looks really cool. With the GMT function, it's easy to keep track of different time zones. The watch is water - resistant up to 200m, so you don't have to worry about it getting damaged underwater.