Hottptyer 950pcs O Ring Set 0.6mm Watch Sealing Rings 12mm to 30mm Seals band gaps during repair using Rubber Gasket and 19 sizes from

[ SEALING] These rubber O rings cover gaps between the watch band and movement to support watch sealing. They provide practical replacements during watch repair when an existing back seal needs to be changed. [SIZE VARIETY] The set contains 950 pieces in 19 sizes ranging from 12mm to 30mm with a 0.6mm specification. This range helps meet different watch repair needs and provides suitable replacements for various watch sizes. [REPAIR ACCESSORY] Designed as professional watch repair tools these sealing rings are useful for watch repair and watchmaker projects. Keep multiple sizes available when servicing watches or replacing worn rubber seals. [RUBBER MATERIAL] Made of rubber material these O rings are intended for repeated watch repair work and provide a long service life. Their practical construction supports regular handling while fitting different watch sealing requirements. [REPLACEMENT PARTS] These watch rubber gaskets serve as replacement parts for different sizes from 12mm to 30mm. The organized range makes it easier to select a suitable ring for watch back sealing and movement related repair tasks.