Seiko Astron Solar GPS SSJ005J1 ceramic bezel watch. Watch with hard-coated steel case, 39 mm in diameter and 131 mm thick. Silver colored ceramic bezel. Black dial with sapphire crystal, super transparent coating. Lumibrite on hands and index / s. Super clear coating. Three-fold closure with push button release. Screw-down caseback. Hand position automatic alignment function, Function to prevent GPS signal reception (in flight mode), GPS signal reception function (time zone adjustment, automatic time adjustment, manual time adjustment), overload prevention, Perpetual calendar as of February 28, 2100, Power saving function, Reception result display function. Delivered with original box and official guarantee. bf22