Discoloration-resistant timepiece or jewelry part

A watchmaking, jewellery or jewellers items is fabricated in an alloy containing by wt at least 75% of gold and at least 6% of copper together with between 0.5 and 4% of platinum.

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Bibliographische Detailangaben
1. Verfasser:	BAUR JACQUES,OULEVEY FREDERIC,SAUDAN MICHELE,VINCENT DENIS
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS BRACELETS CHEMISTRY COINS FERROUS OR NON-FERROUS ALLOYS HABERDASHERY HOROLOGY HUMAN NECESSITIES JEWELLERY MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL MECHANICALLY-DRIVEN CLOCKS OR WATCHES METALLURGY OTHER PERSONAL ADORNMENTS PHYSICS TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	A watchmaking, jewellery or jewellers items is fabricated in an alloy containing by wt at least 75% of gold and at least 6% of copper together with between 0.5 and 4% of platinum.