The GMT hand can be set independently in one-hour increments without interrupting the time-of-day hands and allows the wearer to see, at a glance, the time in a second time zone. Each new watch adds the GMT hand while incorporating 200 meters of water resistance, a highly legible Lumibrite-equipped dial, and a unidirectional bezel in scratch-resistant ceramic. And the automatic mechanical movement runs for three full days when fully wound.