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1968 Heritage Diver’s GMT U.S. Limited 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 timepiece, available in a controlled production run of 500 pieces, honors Seiko’s landmark 1968 Diver’s Watch and showcases the brand’s first mechanical GMT movement created for diving, caliber 6R54. Extending the theme of duality with functionality in the sea and on land, the dramatic vertically gradated dial reflects the view from above and below the water.

FEATURES:
1968 Heritage Diver’s GMT U.S. Limited Edition
Limited Edition of 500
Serial number engraved on case-back
The dramatic vertically gradated blue dial reflects the view from above and below the water
Black ceramic uni-directional rotating elapsed timing bezel
Automatic GMT with manual winding capability
Date calendar
Gold-tone GMT hand
LumiBrite hands and markers
Screw-down crown and case-back
Tri-fold push button release clasp with secure lock and extender

CASE DIMENSIONS:
Thickness: 12.9 mm
Diameter: 42 mm
Length: 48.6 mm
Lug width: 20 mm

MOVEMENT:
Caliber 6R54
21,600 vibrations per hour
24 jewels
Power reserve: approximately 72 hours
Automatic GMT

CASE:
Stainless steel case with super-hard coating
Crystal: Sapphire crystal with anti-reflective coating on the inner surface
Water Resistance: 200 meters (660 feet), follows ISO standards and is suitable 
for scuba diving
Dial Color: Blue

STRAP:
Stainless steel bracelet with super-hard coating

SPB477 Seiko GMT
Seiko SPB477