[product_description] Prospex LX Collection. Designed for those who treat life as the ultimate adventure, the Seiko Prospex line follows every challenge with technological excellence and style. Powered by a Seiko Spring Drive movement, this precision timepiece combines a 30-jewel automatic movement with a quartz regulator for accuracy to +/- 1 second per day, +/- 15 seconds per month. With a power reserve of approximately 72 hours, the movement can be wound manually or automatically. Crafted of light and durable titanium with a black super-hard coating for nearly doubled hardness, this superbly reliable watch features a screwdown caseback and crown, as well as a black leather strap and tri-fold push button release clasp with secure lock and slide adjuster. The rich black dial, framed by a rotating compass bezel, includes a power reserve indicator, date calendar, GMT 24-hour hand, and LumiBrite hands and markers, and is topped by a sapphire crystal with super-clear coating. 20 bar, 200M Water Resistant. [/product_description] [short_description] Prospex LX Collection. Designed for those who treat life as the ultimate adventure, the Seiko Prospex line follows every challenge with technological excellence and style. Powered by a Seiko Spring Drive movement, this precision timepiece combines a 30-jewel automatic movement with a quartz regulator for accuracy to +/- 1 second per day, +/- 15 seconds per month. With a power reserve of approximately 72 hours, the movement can be wound manually or automatically. Crafted of light and durable titanium with a black super-hard coating for nearly doubled hardness, this superbly reliable watch features a screwdown caseback and crown, as well as a black leather strap and tri-fold push button release clasp with secure lock and slide adjuster. The rich black dial, framed by a rotating compass bezel, includes a power reserve indicator, date calendar, GMT 24-hour hand, and LumiBrite hands and markers, and is topped by a sapphire crystal with super-clear coating. 20 bar, 200M Water Resistant. [/short_description] [unique_description_1]| Caliber 5R66 ^| Accuracy: +/-1 seconds per day (+/-15 seconds per month) ^| 30 jewels ^| Power reserve: approximately 72 hours ^| | Case Diameter: 44.8mm ^| Case Thickness: 14.7mm ^| Case Length: 50.9mm ^| Prospex LX ^[/unique_description_1] [unique_description_2] | Prospex LX ^ | Spring drive GMT ^ | Automatic with manual winding capability ^ | Rotating compass bezel ^ | Black dial ^ | GMT hand ^ | Power reserve indicator ^ | Date calendar ^ | LumiBrite hands and markers ^ | Screwdown crown ^ | Tri-fold push button release clasp ^ [/unique_description_2]