Naval Special Warfare Command. NAVSEA 06 (PMS 240). Condition: Used, and in nice shape. The coin is 1 3/4 inches in diameter. It has a serrated edge. 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 NAVSEA 06 PMS 240 Program Mgr SEAL Navy Challenge Coin” is in sale since Sunday, September 12, 2021. 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.