Watch Repair Tools 1box Watch Case Rubber Waterproof O-Ring Oil-resistant Watch Bottom Cover Gasket 0.5/0.6mm O-Ring Seal Gasket

Watch Back Case Rubber Waterproof O-Ring Gasket Repair Tools for Watchmaker Thickness 0.5Mm/0.6Mm 200PcsSpecifications:Material: RubberBox size: 10.9 * 6.5 * 1.35cmDiameter of waterproof ring: 0.5mm, 0.6mmWaterproof ring size:0.5x16, 0.5x18, 0.5x20, 0.5x21, 0.5x23, 0.5x24, 0.5x26, 0.5x27, 0.5x30,0.6x16, 0.6x17, 0.6x20, 0.6x22, 0.6x23, 0.6x24, 0.6x25, 0.6x26, 0.6x28Package include:200pcs/set * Rubber O-RingFeatures:The rubber O-ring watch washer is used to keep the watch waterproof.Made of rubber, flexible, wear-resistant and durable.Including 200 pieces to meet your different needs.A perfect substitute for the sealing gasket of the watch back cover.It is suitable for watchmakers and repairmen.