Seiko – Prospex Sea 1965 Heritage Diver’s Blue Dial & Bezel – SPB451
Movement
Caliber Number: 6R55
Movement Type: Automatic with manual winding
Power reserve: 72 hours / 3 days
Jewels: 24
Functions: Stop second hand function
CaseÂ
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 buttonÂ
release with extender
Other Details
Water Resistance: 300 m / 1000 ftÂ
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
