Brand : Seiko Model No : SSA271J1 Series : Seiko Automatic Gender : pria Garansi produk : 1 Case diameter : 40 mm Case thickness : 12 mm Water resistant : 100 Meters/10 ATM/10 BAR Case material : Stainless Steel Case back : Screw case back Glass material : Sapphire crystal Strap material : Stainless Steel Calendar : No Calendar Luminious / LumiBrite : Yes Movement :Mechanical Automatic 4R39 24 Jewels , (with Hand winding and Hack function) Power reserve :50 hours Accuracy : 25/-15 sec/day Dial color :Black Features :Date Display Weight after packing :approx. 700g