I Metal Detected 100 Miles of Beach

We finally found the 24 carat GOLD Apple watch that Dan lost 9 months ago. His Apple watch has been soaking in deep water for almost a YEAR. Can the apple watch survive being under water for that long? Can an Apple Watch marinate in a marina for 9 months and still live? The only way to find out for sure is by tearding it down and seeing what needs to be replaced.