- Adjusted: A term referring to temperature correction
and positional timing of the watch movement. This reference has different
meanings depending on whether the watch is a pocket watch or a wrist
watch. Temperature means the watch can accurately keep time between
42 and 92 degrees Fahrenheit. Positional timing means the number of
adjustments.
- Analog (Anlogue): Any watch or Clock with hands instead
of a digital readout.
- Arbor: The shaft or axle wheel that turns in a bearing.
- A.W.I: The American Watchmakers-Clockmakers Institute.
- Balance: The oscillator or wheel which with a balance
spring (better known as a hairsprint) connected, is the timing controller
of the watch escapement.
- Barrel: The container that holds the mainspring.
- Barrel Arbor: The axle of the barrel around which
the mainspring is coiled or wound.
- Bezel: The part of the watchcase, ring or frame that
holds the crystal in place.
- Bow: The part of the watch inwhich a chain can be
connected to.
- Bridge: The upper plates in a watch movement that
contains bearings for the wheel pivots.
- Cannon Pinion: A thin tube with pinion leaves at the
lower end, usually connecting the minute hand at the upper end.
- Cap Jewel: A flat, solid jewel which allows the pivot
end to rest. Alson known as the endstone.
- Case: Container holding the watch movement.
- Case screws: Screws that whold the movement securely
to the case. Usually there are two.
- Center Wheel: This is usually the wheel at the center
of the movement inwhich the cannon pinion is attached to. Sometime
referred to as the "second wheel".
- Chronograph: A watch is a stop watch like function.
- Chronometer: This depends on which country the watch
came from. Regardless, of who made them, the watches are adjusted
to keep exact time.
- Click: The pawl used to prevent the ratchet wheel
from rotating backwards after the mainspring has been wounded.
- Crown: The button at the top of the stem that is used
to wind the watch. Sometimes referred to as the winder.
- Crystal: The glass or plastic part of the watch used
for protecting the hands and face of the watch. The Crystal is held
in place by the Bezel.
- Cylinder Esapement: Invented in England, it is a type
of escapement for setting the time. Unlike the level type that was
used before it's invention.
- Damaskeening: Ornamental Work etched into the metal
of the watch.
- Demi-hunber: Also known as a half-hunter. A watch
with a whole cut in the front of the cover showing the hands of the
watch. Sometimes the hole is filled with a crystal.
- Detent: The setting level on a watch.
- Dail: The face of a watch.
- Double Sunk Dial: A style of watch where different
parts of the watch are sunk seperately from each other. Usually the
second hand is sunk seperately from the minute hand.
- Duplex Escapment A sunburst type escape wheel. This wheel give
direct impulse to the balance in alternate movements.
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