Glossary: C
Watch terms starting with C.
CalibreThe specific design or model of a watch movement, usually identified by a manufacturer’s calibre number or name.
ChronographA watch with an integrated stopwatch function that can start, stop and reset elapsed-time measurement.
ClaspThe fastening mechanism used to secure a watch bracelet or some straps around the wrist.
Clasp TypeA watch specification field known as Clasp Type, used to describe or compare a measurable or identifying characteristic of a watch.
CleaningA watch ownership, maintenance or repair term describing Cleaning.
Co-AxialOmega-associated escapement technology developed from George Daniels’ co-axial concept to reduce sliding friction in the escapement.
CokeCollector nickname for a red-and-black bezel, especially associated with certain Rolex GMT-Master II references.
ComplicationAny watch function beyond the basic display of hours, minutes and seconds.
Condensation Under CrystalA watch ownership, maintenance or repair term describing Condensation Under Crystal.
ConditionA buying, selling or valuation term used in the watch market: Condition.
ConsignmentA buying, selling or valuation term used in the watch market: Consignment.
COSC CertificationIndependent Swiss chronometer certification issued after a movement or watch meets specified precision testing requirements.
CountdownA watch function or complication known as Countdown, adding information or capability beyond basic time display.
Counterfeit WatchA term used by watch collectors and enthusiasts: Counterfeit Watch.
CrownThe external control used to wind a watch and/or set its time, date and other functions.
Crown GuardsA watch component, material or construction term describing Crown Guards.
CrystalThe transparent cover over a watch dial, commonly made from sapphire, mineral glass or acrylic.
CurrencyA watch specification field known as Currency, used to describe or compare a measurable or identifying characteristic of a watch.
Current ProductionA buying, selling or valuation term used in the watch market: Current Production.
Customs DutyA buying, selling or valuation term used in the watch market: Customs Duty.
Cyclops LensA watch component, material or construction term describing Cyclops Lens.