Seiko men's watch designed for the sea, Prospex SRPK43K1 Night Vision model, waterproof to 200 meters which will faithfully accompany you in your underwater explorations. This model has a titanium carbonate-coated stainless steel case and an anti-reflective sapphire crystal with magnifying glass. The hands and indices are coated with professional-grade Seiko Lumibrite Green Pro. The ceramic bezel gives this solid black watch a luxurious feel.

Movement
Calibre:4R36
Movement Type:Automatic with Manual Winding
Power Reserve:41 Hours
Jewels:24

Exterior
Dial Colour:Black
LumiBrite:Lumibrite on hands, indexes and bezel
Case Material:Stainless steel (Super Hard Coating)/ Ceramic Bezel
Strap/Bracelet:Stainless Steel
Clasp:Three-fold clasp with secure lock and extender
Case Diameter:45.0mm
Case Thickness:13.2mm
Case Length:47.7mm
Lug Width:22.0mm

Other Specifications
Water Resistance:20 bar
Weight:198.0g
Crystal Coating:Anti-reflective coating on inner surface
Crystal Type:Sapphire crystal with magnifier
Screw case back, Screw-down crown, Unidirectional rotating bezel
Watch Function:Day/Date display, Stop seconds hand function