Seiko Prospex Heritage Turtle 1968 Re-interpretation Prospex Heritage Turtle 1968 Re-interpretation MOVEMENT TYPE: Mechanical MOVEMENT CALIBRE: 6R35 -15/+25 seconds per day BAND TYPE: Silicone CLASP TYPE: Buckle DIAL COLOUR: Black WATER RESISTANCE (Metres): 200 CASE WIDTH: 41mm CASE DEPTH: 12.3mm GLASS TYPE: Sapphire Crystal DATE FUNCTION: Date Only STONE TYPE: None