Naval Special Warfare Command. Condition: Please see pictures. Coin is the small standard 1 1/2 inches in diameter coin. The item “Navy Special Warfare Command Challenge Coin” is in sale since Monday, November 19, 2018. This item is in the category “Collectibles\Militaria\Current Militaria (2001-Now)\Original Items\Challenge Coins”. The seller is “rbcsh” and is located in Melbourne, Florida. This item can be shipped to United States.