Seiko 5 Sports UltraSeven Double Anniversary 3,400 Piece Limited Edition Introducing the double anniversary, limited edition Seiko 5 Sports collaboration with UltraSeven: the popular Japanese science fiction TV programme. MOVEMENT TYPE: Mechanical MOVEMENT CALIBRE: 4R36 -35/+45 seconds per day BAND TYPE: Nylon CLASP TYPE: Buckle DIAL COLOUR: Silver WATER RESISTANCE (Metres): 100 CASE WIDTH: CASE DEPTH: GLASS TYPE: Hardlex DATE FUNCTION: Day and Date STONE TYPE: