Materials
Sapphire Crystal
A highly scratch-resistant synthetic crystal used to protect the dial.
Read definition →TimeHunter Encyclopedia
Watch Glossary
Explore essential terminology from movements and complications to collector language, materials and finishing.
17 terms
Case
Screw-Down Crown
A crown that threads into the case to improve sealing.
Read definition →Dial
Sector Bezel
A bezel or dial ring divided into functional reading zones.
Read definition →Dial
Sector Dial
A dial divided into concentric or geometric reading zones.
Read definition →Collector Terms
Service Dial
A replacement dial installed during servicing.
Read definition →Collector Terms
Service Hands
Replacement hands installed during servicing.
Read definition →Maintenance
Service Interval
The recommended period between complete movement services.
Read definition →Movements
Shock Protection
A system protecting the balance staff from impact.
Read definition →Movements
Silicon Escapement
An escapement using silicon components for low friction and magnetic resistance.
Read definition →Styles
Skeleton Watch
A watch with movement components opened or cut away for visibility.
Read definition →Dial
Small Seconds
A seconds display located in a sub-dial rather than at the centre.
Read definition →Craftsmanship
Snailing
A decorative spiral finish applied to movement parts.
Read definition →Movements
Spring Drive
A hybrid movement system combining mechanical energy with electronic regulation.
Read definition →Materials
Stainless Steel
A corrosion-resistant alloy widely used for watch cases and bracelets.
Read definition →Dial
Sub-Dial
A smaller dial used for secondary information.
Read definition →Dial
Sunburst Dial
A radial brushed dial finish that reflects light dynamically.
Read definition →Materials
Super-LumiNova
A widely used non-radioactive luminous pigment.
Read definition →