Seiko 5 Sports Automatic Polyester SNZG11J1-var-NATO28 100M Men's Watch Sporty and durable, this military-inspired Seiko is one of the most popular designs of the Seiko 5 range. It offers exceptional value for money and qualifies as a great everyday watch that can also be worn during vigorous sporting activities and demanding environmental conditions. It’s very clean and straightforward even for a field watch. Will go through hell and return running just fine.