Designed for those who treat life as the ultimate adventure, the Seiko Prospex line meets every challenge with technological excellence and style. Part of a rich legacy of innovation in high-intensity timekeeping, Prospex continues to celebrate a long history of sports watch excellence with recreations and reinterpretations of landmark achievements.

This new Seiko Prospex LX Spring Drive GMT 'Sky' Limited Edition highlights Seiko's past and present feats, with a design inspired by Seiko's revolutionary 1968 professional diver's watch, but powered by a fully modern Seiko Spring Drive movement, combining a 30-jewel automatic movement with a quartz regulator for accuracy to +/- 1 second per day, +/- 15 seconds per month. With the Spring Drive movement tested for precision by astronaut Richard Garriott on the International Space Station, this limited edition also pays tribute to space exploration with the blue and black gradated dial and sapphire bezel ring evoking the stratospheric boundary of the Earth's sky and outer space.

Specifications

• Case Material : Titanium case with super-hard coating
• Glass Material : Sapphire
• Glass Coating : Super-clear coating
• Case size : Diameter 44.8mm × Thickness 14.7mm
• Screwdown crown & caseback
• Band Material : Titanium bracelet
• Clasp type : three-fold clasp with push button release
• Limited to 400 pieces (individually numbered)

Movement

• Caliber no. : Spring Drive GMT 5R66
• Movement Type : Automatic with date & 24-hour GMT and manual winding capability
• Power reserve : Approx. 72 hours
• Accuracy : ±1 seconds per day (±15 seconds per month)
• 30 jewels

Special Features

• Blue 'horizon' gradient dial
• Power reserve indicator
• Lumibrite luminous hands & hour markers
• Water resistance : 10 bar (330 feet)
• Magnetic resistance : 4,800 A/m
• Hour hand can be independently adjusted separate from 24-hour GMT hand