Naval Special Warfare Group Three. Condition: Used, but in good shape. This coin is 2 inches in diameter with epoxy on both sides. Naval Special Warfare Group 3 (NSWG-3), based at the Naval Amphibious Base Coronado. Is one of six constituent formations of the United States Naval Special Warfare Command. Teams: SDVT-1 in Pearl Harbor. And SDVT-2 in Little Creek. In 2008, SDVT-2 was disestablished and merged into SDVT-1, which is now headquartered in San Diego. And operates detachments in Pearl Harbor and Little Creek. An SDV platoon consists of 12-15 SEALs. Never personally given any of the coins. All coins are guaranteed to be in excellent condition unless otherwise specified above. The free listing tool. The item “Naval Special Warfare Gp Three #157 Navy First Class Mess Challenge Coin / SEAL” is in sale since Tuesday, June 03, 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.