Seiko 5 Sports Automatic Polyester SNZG11K1-var-NATO28 100M Men's Watch This small, jewel of a personal and intimate accessory is a field watch harmonious with both the environment and the wearer, with its functions and performance offering a reassuring and exciting feeling. Wear it even during snorkelling or recreational scuba diving and it will continue to tick along with no trouble. You’ll notice meaningful differences with other watches in its category in real use.