Seiko Watches: Original Orfina Porsche Design black case - The Military Watch Resource - Community Fora

2010年5月6日星期四

Original Orfina Porsche Design black case - The Military Watch Resource - Community Fora - Luxury watches

Since it comes up so often, I want to call attention to Joel's new Orfina Porsche Design coming to him from Fred and Janice. I hope the parties don't mind me calling attention to the watch. [What's a little coveting among friends, eh?]

It is not PVD. This example has the original oxide treatment to the stainless steel case and bracelet. It is in very good shape and you can see the traditional wear pattern - thinning of the oxide layer on surfaces that rub (crown and pushers) and exposure of metal on exposed corners (I don't see much of that).

The original process is a electro-chemical bath treatment that deposits a thin oxide layer on un-masked surfaces. For steel, it is called "passivation" and can be done in multiple colors/shades, but sometimes called "anodization" (which is the same oxide treatment, but for aluminum).