Commander Naval Special Warfare Command. Condition: Used, and in good shape. The coin is 1 9/16 inches in diameter with hard baked enamel. This is a hard to find challenge coin. 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 “Commander Naval Special Warfare Command SEALs 1-Star Admiral Navy Challenge Coin” is in sale since Sunday, July 29, 2018. 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.