Watch Terminology
AnalogueUsing hands to display the time, not a digital display.
AutomaticAutomatic watches are exactly the same as mechanical except they do not need winding as long as they are being worn on a wrist. The movement of the wrist is sufficient to move an oscillating weight, which keeps the mainspring wound up.
BezelThe ring on the outside of the watchcase around the dial.
BraceletA metal bracelet, which holds the watch to the wrist. Made up of links allowing the bracelet to fit any wrist comfortably.
Bracelet setsBracelet sets are matching watch and bracelet designs.
CaseThe body of the watch to which the bracelet or strap is attached. Cases are available in a wide variety of shapes and metals.
Case backThe cover on the back of a watch, which protects the movement. A case back normally snaps back into place or in the case of a water resistant model will be of the screw down variety to ensure water cannot permeate the seal.
ChronographA watch, which also acts as a stopwatch.
CrownUsed for setting the watch hands. Also known as a button.
CrystalCover made of glass, plastic, or synthetic sapphire, fitted with a bezel.
ClaspThe fastening mechanism on a watch bracelet.
Dial The dial sits on top of the movement and displays the time.
Digital WatchDisplays the time using a digital display.
ElectroplatingThe process of applying a decorative finish to base material. Electroplating can be used for gold plating, rhodium plating or palladium plating.
KineticSeiko's latest and most technically advanced watches are called Seiko Kinetics. They contain their own internal electrical generators--operated by natural wrist movements--making them independent of conventional storage batteries.
LCDLiquid crystal display of numerals in a digital watch.
LEDLight emitting diode, the display of numerals in early digital watches.
LugMetal projections at either side of the case, which hold the spring bar onto which the bracelet or strap is attached.
MechanicalA mainspring in a housing called a barrel powers a mechanical watch. The mainspring when wound by hand, unwinds very slowly, transmitting power to a system of interconnected gearwheels called the gear train. This in turn is connected to the escapement mechanism consisting of a wheel and a pallet fork, which transmits impulses to the balance wheel, making it oscillate. This is the element, which makes the characteristic ticking noise. There is a further train, which moves the hands of the watch.
Mineral glassA hardened watch glass (or crystal) that is scratch resistant.
Moon PhaseThe phases of the moon are displayed in a window on the dial.
MovementThe complete unit inside the watch that makes it work.
Perpetual CalendarA calendar mechanism that adjusts itself to the different months and leap years. Will continue until February 28, 2100.
Power cellAnother name for a battery.
QuartzRock crystal made to oscillate by electronic current. Maintains constant frequency according to its weight and mass. In modern quartz watches a synthetic material is used.
Sapphire GlassSapphire crystals are made from synthetic sapphire and are practically unscratchable.
Screw Down CrownThis type of crown is threaded and winds down to secure enhancing dust and water resistance.
Self WindingAutomatic.
Shock ResistantIf a watch is dropped onto a hard surface from a height of 3ft and it does not stop it is judged to be shock resistant, or if its daily rate is not affected by more than 60 seconds per day.
Solar PoweredPanels capture the light converting it into electricity, which powers the quartz movement.
Sterling silverContains at least 92.5% pure silver.
Stainless SteelA dense, extremely durable, and rust-resistant metal, which does not require electroplating.
StrapCan be leather, simulated leather, plastic or nylon. It is the band that holds the watch to the wrist.
Spring BarA metal pin used on most straps to fasten them to the watchcase.
Tachymetre (tachometer)A measuring system located on the bezel or outer ring of the dial that can be used to calculate speed in mph or kph.
Water-resistantPlease see our chart explaining
water resistance.
World Time WatchDisplays the current time in any time zone.