SEIKO PROSPEX SEA 1965 Heritage Diver's Watch SPB453J1

Specifications
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
Functions
Stop second hand function
Case/Band
Case Material
Stainless steel
Case Size
Thickness:13.0mm
Diameter:40.0mm
Lug-to-lug:46.4mm
Crystal
Curved sapphire crystal
Crystal Coating
Anti-reflective coating on inner surface
LumiBrite
LumiBrite on hands, index(es) and bezel
Clasp
Three-fold clasp with secure lock , push button release with extender
Distance between lugs
20mm
Other Details
Water Resistance
300m / 1000ft diver's
Weight
168.0g
Features
Unidirectional rotating bezel
Screw-down crown
Screw case back