Seiko Prospex Green Automatic Diver Silicone Watch SPB153J1. Watch with 42.5mm diameter and 13.2mm thick hard coated stainless steel case. Unidirectional rotating green bezel. Screw-down crown and case back. Green colored dial, with curved sapphire crystal and anti-reflective coating on the inner surface. Lumibrite on the hand, indexes and bezel. Manual winding automatic movement cal. 6R35 +25 to -15 seconds per day. Equipped with 24 jewels, date display and stop second hand function. Black silicone strap with buckle closure. Water resistance of 200m / 660ft for divers. Modern reinterpretation of the first diving watches. Delivered with original box, official guarantee and spare strap. bf22