This Grand Lange 1 Moon Phase Brown Leather Mens Watch, 139.021 features 41.0mm Yellow Gold case, Yellow Gold Hands, Sapphire crystal, Fixed bezel, and a Brown Leather Strap. Grand Lange 1 Moon Phase 139-032 Brown Leather Mens Watch, 139.021 also features Automatic Movement, Analog display, Date at 1'o clock. This watch is water resistant up to 30 meters/100 feet.