Watch Glossary
1676 horological terms explained
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Gaseous tritium light sourceMaterials
GTLS technology using tritium gas in sealed tubes to provide continuous watch dial illumination
GiltMaterials
Thin layer of gold plating applied to brass or other base metals
Gilt WashingMaterials
Thin gold plating layer applied to brass watch components; characteristic of mid-century movements.
GoldMaterials
Precious metal used in watch cases; yellow, white, and rose gold are common varieties
GS/TP case hardening standardMaterials
German military requirement for enhanced case surface hardness and corrosion resistance.
GTLSMaterials
Abbreviation for gaseous tritium light source, a self-illuminating watch dial technology