SEIKO SPB181J1(C5)

Movement Caliber Number 6R35 Movement Type Automatic with manual winding Precision +25 to -15 seconds per day Power reserve Approx. 70 hours Jewels 24 Functions Stop second hand function Date display Case/Band Case Material Stainless steel Case Size Thickness:12.9mmDiameter:45.0mmLug-to-lug:52.6mm Crystal Sapphire crystal 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 200m / 660ft diver's Weight 188.0g Features SPECIAL EDITION on the case back Unidirectional rotating bezel Screw-down crown Three-fold clasp with secure lock Screw case back