[7s26b]

I was reading this Epson press release about their metal powder process, which is used widely in many industries - but also in Seiko watch manufacture, both cases and movement parts . The powder is used in MIM and MEMS processes.
I think Seiko uses this widely with their Titanium cases also.
http://global.epson.com/newsroom/2013/news_20130904.html
http://www.atmix.co.jp/en/e_beginner_main.html (look under the "product" header). This has some very interesting material information.