SEIKO PROSPEX ALPINIST AUTOMATIC STAINLESS STEEL BLACK DIAL STAINLESS STEEL BRACELET WATCH Automatic with manual winding capacity Accuracy+25 to -15 seconds per day Rotating compass inner ring Screw case back Screw-down crown See-through case back Sapphire with magnifier MOVEMENT TYPE: Mechanical MOVEMENT CALIBRE: 6R35 -15/+25 seconds per day BAND TYPE: Stainless Steel Bracelet CLASP TYPE: Z-Clasp DIAL COLOUR: Black WATER RESISTANCE (Metres): 200 CASE WIDTH: 39.5mm CASE DEPTH: 13.1 GLASS TYPE: Sapphire Crystal DATE FUNCTION: Date Only STONE TYPE: