Seiko Prospex SPB313J1

Specifications:

Model No. SPB313J1
Movement Caliber Number: 6R35
Movement Type: Automatic with manual winding
Precision: +25 to -15 seconds per day
Power reserve: Approx. 70 hours
Jewels: 24
Stop seconds hand function
Date display
Case Material: Stainless steel
Thickness: 12.3mm
Diameter: 41.0mm
Lug-to-lug: 46.9mm
Crystal: Curved sapphire crystal
Crystal Coating: Anti-reflective coating on inner surface
LumiBrite on hands, index(es) and bezel
Clasp: Three-fold clasp with secure lock , push button release with extender
Distance between lugs: 20
Water Resistance: 200m / 660ft diver's
Magnetic Resistance: 4,800 A/m
Weight: 156.0g
Unidirectional rotating bezel
Screw-down crown
Three-fold clasp with secure lock
Screw case back