Seiko - Prospex Sea 1965 Heritage Diver's Blue Dial & Bezel - SPB451

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1965 Heritage Diver’s Watch. Designed for those who treat life as the ultimate adventure, the Seiko Prospex collection 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 re-creations and re-interpretations of landmark achievements. Updated with more power, greater water resistance, enhanced legibility and a compact construction designed for maximum comfort, this rugged yet sleek timepiece reimagines Seiko’s 1965 first diver’s watch, the beginning of the company’s legacy of setting the standards in dive watch technology and design. 

Movement
Caliber Number: 6R55
Movement Type: Automatic with manual winding
Power reserve: 72 hours / 3 days
Jewels: 24
Functions: Stop second hand function

Case 
Material: Stainless steel
Thickness: 13 mm
Diameter: 40 mm
Lug-to-lug: 46.4 mm
Between lugs: 20 mm

Crystal
Material: Curved sapphire
Coating: Anti-reflective coating on inner surface
LumiBrite: LumiBrite on hands, indexes & bezel

Clasp
Three-fold clasp with secure lock , push button 
release with extender

Other Details
Water Resistance: 300 m / 1000 ft 
Magnetic Resistance: 4,800 A/m
Weight: 168 g

Features
Unidirectional rotating bezel
Screw-down crown
Three-fold clasp with secure lock
Screw case back