|
Horology G
|
| |
| Gasket |
A formed piece of rubber or nylon (cork and even lead
were used in the past as well), designed to prevent water from entering
the case. |
| |
Gear Train /
Going Train |
An assortment of wheels and pinions that either slow
down or speed up the transfer of rotational energy. |
| |
| Geneva
Seal |
Dating back to 1886, a seal that certifies a watch meets
certain standards of quality set by the Canton of Geneva (exclusively
for movements produced in Geneva); these standards were revised (and
tightened) in 1957. |
| |
| Glass |
Refer to Crystal |
| |
| Glucydur |
A trade name for beryllium copper, used to make high-grade
balance wheels. |
| |
| GMT |
A watch that displays Greenwich Mean Time in addition to the local
time; also called UTC (Coordinated Universal Time).
GMT is the basis for civil time in the UK, based on the Greenwich
meridian. Other countries use different time zones. e.g. Hong Kong
is GMT + 8 hours
|
| |
| Gold Filled |
Rather than being made of 100% gold, a gold-filled case
is one in which gold bars are soldered to a base metal, then rolled
into sheets, providing a higher thickness of gold than gold-plating. |
| |
Grande Sonnerie /
Great Strike |
A watch that strikes hours and quarter hours in passing;
typically also accompanied by a minute repeater function. |
| |
| Guilloche |
The French word for engine turning, used to describe
a decoration most commonly found on the surface of a watch dial. |
| |
|
|
