Horological repair, restoration and machining

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The following article is a simple summary to help you understand water resistance and in no way supersedes your watch’s manual or manufacturers’ recommendations.

Contrary to popular belief a modern watch may not be labeled “waterproof”, only  “water resistant” -  this is dictated by the Federal Trade Commission.

Three conditions- materials, temperature / pressure & testing- dictate how water resistant your watch is or can be. 

Water resistance