Seiko Prospex Diver SPB143J1 This versatile timepiece reimagines Seiko's 1965 first diver's watch, an automatic timepiece with a then exceptional water resistance of 150 meters. Offering an extraordinarily legible dial and durable enough to become standard equipment on the Japanese Antarctic Research Expedition (JARE), this landmark timepiece propelled Seiko into the forefront of dive watch design. 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 seconds hand function Date display Case/Band Case Material Stainless steel (super hard coating) Case Size Thickness:13.2mm Diameter:40.5mm Lug-to-lug:47.6mm Crystal Curved sapphire crystal Crystal Coating Anti-reflective coating on inner surface LumiBrite LumiBrite on hands, indexes and bezel Clasp Three-fold clasp with secure lock , push button release with extender Distance between lugs 20 Other Details Weight 180.0 Features Unidirectional rotating bezel Screw-down crown Three-fold clasp with secure lock Screw case back
