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Good write up, Larry! Thanks!
Any comments on the seal material? I know that most elastomers swell and fail in chloride environments (ionized solutions) - which would include sweat, swimming pool water, seawater, etc. As you note, these solutions tend to remain in/around the sealing crevices. Not only is it warm as you suggest, but as the water evaporates from the residual, an even more concentrated and active solution is formed. Thus, seawater might not be of sufficient concentration to cause failure while swimming, but it can get much worse if you lay on the beach for an hour before dipping into the ice chest for that cool one. The best elastomeric material for chloride resistance in industry was Viton A for many years, but I have no idea what Rolex might be using for their case seals. Any leads on that? Thanks again.
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