United States Navy Special Warfare. Condition: Used, and in good shape. The coin is 1 5/8 inches in diameter. To view miscellaneous challenge coins. NOTE: Never personally given any of the coins. All coins are guaranteed to be in excellent condition unless specified above. The free listing tool. The item “Naval Special Warfare SEAL Team Two Newport Detachment Navy Challenge Coin / 2″ is in sale since Tuesday, April 8, 2014. This item is in the category “Collectibles\Militaria\Current Militaria (2001-Now)\Original Items\Challenge Coins”. The seller is “rolyat11″ and is located in Panama City, Florida. This item can be shipped worldwide.