SEIKO PROSPEX TUNA PROFESSIONAL 1,000M DIVERS COLLECTION ‘TUNA’ 47.7MM 1000M WATER RESISTANT, SILICONE Quartz Accuracy±15 seconds per month MOVEMENT TYPE: Quartz MOVEMENT CALIBRE: 7C46 -15/+15 seconds per month BAND TYPE: Silicone CLASP TYPE: Buckle DIAL COLOUR: Blue WATER RESISTANCE (Metres): 300 CASE WIDTH: 47.7mm CASE DEPTH: 14.1mm GLASS TYPE: Sapphire Crystal DATE FUNCTION: Day and Date STONE TYPE: