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| Joined: | Thu Apr 16th, 2009 |
| Location: | Arctic, Norway |
| Posts: | 5821 |
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They nearly all turn kind of grey: Maybe because of the higher level of zinc or lead as on the chart O.T came with.
But who knows in fact what kind of alloy he did get from China.
When you look at the whole picture: Scafo,Olivier,Zhuke...
This case had many names: Longio made them all apparently and some small brand starters just had to pick on them catalogue.
For the patina: There's a guy who apparently made it good there http://forums.watchuseek.com/f74/olivier-bronze-diver-worth-wait-%5Bpoll-inside-pvd-not-pvd-%5D-801623-2.html
But you know: He don't want to tell...
Maybe he want to sell his patented process later on, when half of the world owns a O.Bronzo
Maybe you can work it out with a Q.tip and a bit of vinegar but take it easy and don't soak it, it might penetrate in the seals and damage the gaskets.