KMII[Montblanc Moderator]
50272
I figured the case would get patinated...
But not the bezel - and not in that fashion. Thanks for sharing!
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By: amblin_xi : August 29th, 2017-13:06
Yes, you are correct, this is the perfect example of a galvanic corrosion in progress. Aluminum by itself had excellent anti corrosion properties because a thin oxidation layer will rapidly form , adhere to the parent metal and stop any further corrosion ...
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By: amblin_xi : August 29th, 2017-13:45
No, it's the fight of two metals and aluminum will always be the victim. Salt water could be a catalyst but not the main reason behind the problem.. And after all, why would one dive with a bronze watch anyway? Nasty green rust spots will happen especiall...
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By: amblin_xi : August 29th, 2017-16:39
Not sure, I've not seen the particular watch in person, but judging by the gold tone in pictures and typical basic requirements of a watch case , I'd say it's most likely be the CuAl10Fe3. Al content is 8.5%-11% , this particular alloy can offer good stre...