SEIKO OEM Diver's Fat Spring Bars 6 Piece Non-Magnetic Stainless Steel 20mm x 2.5mm x 0.8mm Double Fringe SEIKO Diver's Series Stainless Steel Fat Spring Bar (Double Fringe Style) 2.5mm Gauge/Diameter - 20mm x 2.5mm x 0.8mm Fits 20mm lugs (0.8 mm pin diameter) OEM Swiss 316L Non-Magnetic Stainless Steel You Get 6 pieces SEIKO OEM Diver's Series Fat Spring Bar