United States Naval Special Warfare. Navy Chief’s Mess. Condition: Used, and in good shape. The coin is 2 by 1 5/8 inches. NOTE: Re-list of this same coin from ST3 Chief’s Mess. 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 3 Serial #201 Navy Chiefs Challenge Coin / Three” is in sale since Saturday, November 15, 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.