Technical Features Gold - Longines
Technical Features Gold - Longines
Technical Features Gold - Longines
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Common<br />
control mark<br />
Logotype of the<br />
manufacturer<br />
144 <strong>Technical</strong> <strong>Features</strong> / <strong>Gold</strong><br />
Serial number<br />
Individual number allotted to each watch<br />
manufactured in the <strong>Longines</strong> workshops.<br />
<strong>Longines</strong> logo<br />
Responsibility mark<br />
<strong>Gold</strong><br />
Reference number<br />
Reference number of the watch-case.<br />
Standard<br />
of fineness<br />
On the case-back and the bracelet<br />
Swiss assay mark<br />
Every watch-case made of gold, silver, platinum<br />
or palladium sold in Switzerland has to be officially<br />
assayed and hallmarked. A single official hallmark<br />
was adopted in 1995 – the St. Bernard head.
Logotype of the manufacturer<br />
<strong>Longines</strong> logo<br />
On the inside back cover of the case<br />
Standard of fineness<br />
This indicates the proportion of a pure<br />
precious metal contained in an alloy.<br />
It is expressed in thousands, e.g. 750/1000,<br />
or in carats in the case of gold,<br />
e.g. 18 carats, 24 carats being 100% gold.<br />
Thickness of the case<br />
4/10 indicates that the thickness<br />
of the case-back is at least four-tenths<br />
of a millimeter.<br />
The watch<br />
Reference number<br />
(internal <strong>Longines</strong> number).<br />
The calibre<br />
Reference number of the calibre<br />
used in the watch.<br />
<strong>Technical</strong> <strong>Features</strong> / <strong>Gold</strong><br />
145<br />
<strong>Technical</strong> <strong>Features</strong>
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