Seiko Prospex SPB455J1 100th Anniversary 1965 Heritage 300m Divers Automatic Watch

Movement: Caliber Number 6R55
Movement Type: Automatic with manual winding
Precision: +25 to -15 seconds per day
Power reserve Approx. 72 hours(3 days)
Jewels 24
Stop second hand function
Case Material: Stainless steel
Case Size
Thickness:13.0mm
Diameter:40.0mm
Lug-to-lug:46.4mm
Curved sapphire crystal
Anti-reflective coating on inner surface
LumiBrite on hands, index(es) and bezel
Three-fold clasp with secure lock , push button release with extender
Distance between lugs: 20 mm
Other Details
Water Resistance: 300m / 1000ft diver's
Magnetic Resistance: 4,800 A/m
Features
Unidirectional rotating bezel
Screw-down crown
Three-fold clasp with secure lock and extender
Screw case back"