Dial
Panda Dial
A light dial with contrasting dark chronograph registers.
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Watch Glossary
Explore essential terminology from movements and complications to collector language, materials and finishing.
12 terms
Collector Terms
Patina
Age-related visual changes valued for character and originality.
Read definition →Craftsmanship
Perlage
Overlapping circular graining used to decorate movement plates.
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Perpetual Calendar
A calendar complication programmed to account for months of different lengths and leap years.
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Pie-Pan Dial
A dial with sloped outer facets resembling an inverted pie pan.
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Polished Finish
A reflective surface treatment applied to cases, bracelets or movement parts.
Read definition →Movements
Power Reserve
The amount of operating time remaining before a mechanical watch stops.
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Power Reserve Barrel
A barrel arrangement designed to extend operating autonomy.
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Power Reserve Indicator
A display showing how much energy remains in the mainspring.
Read definition →Maintenance
Pressure Test
A test used to verify the sealing and water resistance of a watch.
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Provenance
The documented ownership and history of a watch.
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Pulsometer
A chronograph scale used to calculate pulse rate.
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