Seiko Sumo Prospex diver SPB101 2019 SPB101J1

Case diameter 45 mm Case thickness 13.5 mm Case material Stainless Steel Case back Screw case back Glass material Sapphire crystal Strap material Stainless Steel Fold over with double push button 31 Date Calender Luminious / LumiBrite Movement Automatic Movement Caliber 6R35 Power Reserve : Approx. 70 Hours Features : 24 Jewels Date display Screw case back Unidirectional Bezel Stop second hand function Water Resistant 20 ATM/ 20 Meters