This SBDX035 has a titanium one-piece case and an outer case protector as same as 1975 original. The case construction and dial layout are loyal to the original, as are the unique hour markers and the crown, while the water resistance has been increased to 1,000m. The outer case material is zirconia ceramic which is seven times harder than steel protecting the case from shock.
Since this is a reissue model of the original Seiko Diver's, it keeps all the innovations that Seiko brought to diver's watches in the 1970's, including the double layer construction with one piece inner case, the L-shaped gasket for helium resistance and the accordion-style strap.
Movement Caliber Number 8L35 Automatic with manual winding capacity Accuracy +15 to -10 seconds per day Duration: Approx. 50 hours
Exterior Case Material: Titanium with Ever-Brilliant Steel Crystal: Sapphire LumiBrite: Lumibrite on hands, indexs and bezel Band Material: Silicone Case Size: Thickness 17.2mm, Diameter 52.4mm, Length 53.5mm
Other Details Water Resistance 1000m / 3300ft for saturation diving Magnetic resistance: 40,000A/m One-piece structure Screw-down crown Serial number engraved on the case back Unidirectional rotating bezel Date display Stop seconds hand function 26 jewels