На вопрос, что такое opaline slate , ответ от Jaquet Droz: "Opaline is a surface quality achieved by sandblasting. This treatment produces a surface finish that appears to be completely matt yet slightly rough, but very pure. The black or slate colouring that is typical of the Jaquet Droz brand is obtained by subsequent treatment in baths." (
http://www.network54.com/Forum/25082...What+are+they- )
JeanRichard
http://cgi.ebay.com/JeanRichard-Bres...item2eb29647fb
RGM на Хамильтоне
http://www.ninanet.net/watches/other...s/mmurphy.html
