Prospex LX GMT U.S. Special Edition. Designed for those who treat life as the ultimate adventure, the Seiko Prospex line meets every challenge with technological excellence and style. This extraordinary Special Edition is inspired by the view of the sun setting behind earth marking where the planet ends, and space begins. The gray-blue dial has a pressed pattern reminiscent of the topography of earth, while the dual-tone dark blue and gray sapphire bezel reflects the fading blue tones as the sun disappears. This spectacular dial features a power reserve indicator, date calendar, LumiBrite hands and markers, and a gold GMT hand that echoes the golden halo effect from sun during this spectacular phenomenon. Providing exceptional precision, the Spring Drive GMT movement, with its Tri-synchro regulator, combines a 30-jewel automatic movement with the quartz regulator for an astounding accuracy of +/- 1 second per day, +/- 15 seconds per month. Offering a power reserve of approximately 72 hours, with manual winding capability, the movement is equipped with a GMT function that allows tracking of a second time zone at a glance. Crafted of light and durable titanium with a super-hard coating, this finely finished watch features a sapphire crystal with super-clear coating, as well as a screwdown caseback and crown, and a tri-fold push button release clasp. 100M Water Resistant.