Casio has officially launched its GMW-BZ5000 series of full metal watches in the US market. The company's new GMW-BZ5000 series consists of three models, including the GMW-BZ5000D-1, the GMW-BZ5000BD-1, and the GMW-BZ5000GD-9. Features include tough solar power, shock-resistant construction, Bluetooth connectivity, and world time across 38 time zones.