1968 Heritage Diver’s GMT. Seiko Prospex challenges every limit with timepieces created to exceed expectations, engineered with superior style and innovative technology for the sea, sky or land. Part of a rich legacy of innovation in high-intensity timekeeping, Prospex continues to celebrate a long history of sports watch expertise with re-creations and re-interpretations of landmark achievements. This extraordinary timepiece, re-interpreting Seiko’s landmark 1968 diver’s watch, showcases the brand’s first mechanical GMT movement in a diver’s watch, caliber 6R54. Providing a power reserve of approximately 72 hours, the longest of any Seiko mechanical watch, this 24-jewel automatic GMT movement beats at a frequency of 21,600 vibrations per hour and offers manual winding capability. The GMT hand can be set independently in one-hour increments, without interrupting the time-of-day hands, providing a second time zone reading at a glance. Framed by a Made-in-Japan green ceramic uni-directional rotating elapsed timing bezel with knurled edge for enhanced operability, the rich green dial features a date calendar, gold GMT hand, and large LumiBrite markers and hands for enhanced legibility. Crafted of stainless steel with super-hard coating, with an upgraded water resistance of 300 meters, this superbly functional timepiece includes an anti-reflective sapphire crystal, screwdown crown and caseback, sporty three-link bracelet, and a slide adjuster clasp for the perfect fit.

Specifications:

• Case dimensions: 42mm diameter, 12.9mm thickness, 48.6mm length
• Case: stainless steel case with super hard coating
• Crystal material: dual-curved sapphire crystal, anti-reflective coating on inner surface
• Dial: green
• Strap/Bracelet: stainless steel bracelet with super hard coating, tri-fold push button release clasp with secure lock and slide adjuster
• Lug width: 20
• Movement: Caliber 6R54, 24 jewels, power reserve: approximately 72 hours, automatic with manual winding
• Water resistance: 300m / 1000ft diver's