If one of your buttons on your Suunto Core is no longer working the way it should, this video should be helpful for you. I disassemble my watch, fix it, and put it back together again. I mentioned you can get the silicon grease at a dive you can get it a lot of other places, including auto parts stores. Many people will probably be fine without adding the extra grease step, but I always add it when I crack open a watch seal. I don’t repair watches for a living, but I do like to fix my own stuff
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