NEVER ARGUE WITH AN IDIOT. FIRST THEY WILL DRAG YOU DOWN TO THEIR LEVEL. THEN, THEY WILL BEAT YOU WITH EXPERIENCE.
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"Owning a vintage watch is great, understanding where it sits in Horology is magnificent"
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This is pretty much all that I'm going to give you guys on this one, I'm not going to give up anything else.
Become an expert on "Japanning Sterling Silver" or Japanned Finish".
Vintage Watch Forums :: View topic - Provenance, Provenance, Provenance
This would be the original watch and box you posted in this thread also, no mention of a black painted finish
at all, brilliant watch.
Do you think my Dennison that i showed in another thread, would be this "Japanning" finish? Everyone else thought it might of been tarnish and not black paint, however its got a screw case and black dial.. and the mostly blackish finish to it. It sorta suggests by what you say that it could be military. Do you think it isn't black paint, but the "black finish" by this "Japanning" method?
Divers - June 1977 Seiko 6309-7040 Quartz Hybrid | March 1978 Seiko 7548-700H (Orange Dial) in a 6309-7040 case | February 1972 Seiko 6105-8110 | Seiko 7548 "Tuna" TST | October 1985 Seiko H558-5000 "Arnie" | Scurfa Stainless Steel.
Chronographs - July 1972 Seiko 6139-6005 (True Pogue).
and easily discernible.
It would work well on brass and nickel perhaps. I have examples of military black jappaned scientific instruments
in brass. I've never saw an example of black jappaned silver.
"Japanned finish" on a "silver case" was Depollier's words.
I don't know exactly how they accomplished this but those were words that were used.
I have no idea when it comes to the durability and longevity of this method on silver or any other material like Nickel or Ore Silver.
Obviously everybody had their own "special secret sauce" when it came to blackening cases to meet the spec.
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