A
A / h; generated per hour balance wheel swing number, two swing composed of mechanical watches unique "ticking" sound, known as the a "swinging weeks".
Alarm; alarm watches, watches device alarm mechanical structure, the sound automatically default time arrives, use as alarm clock.
Amplitude (Vibration); swinging angle of the balance wheel.
Antimagnetic watches; watch the antimagnetic table, will not be affected by magnetic fields, because of the balance wheel gossamer winding is non-magnetic nickel alloy made ??of.
Automat, Automatic; synonyms automatically on refining device watches, wrist action to procure automatic plate to swing back and forth, and thus tighten the mainspring of the watch movement.

B
Balance Spring; system of balance-spring, balance-spring and balance wheel swings back and forth.
The Balance Wheel; balanced wheel. Mechanical watch escapement structure Part one, using swing back and forth (Duty Cycle) divided into the same section of the device.
Barrel; mainspring barrel. Clockwork box equipped with a mainspring the watch power sources, after 36-45 hours of power can be saved on tight, watch hand mixing by hand, rotate the crown to tighten the mainspring, while the automatic table by automatic disk form the core swing back and forth on tight mainspring.
Bridge; splint. Fixed by two or more pins or screws the motherboard brass plywood, gear sets and other components in the plywood and motherboard constitute the space operation.
Bezel; outer ring. The outer ring of the watch glass mirror or on the case of the decorative ring.
 
C
Calibre; Movement No. Description form the core size, structure, and manufacturing plants.
Cal; short for Calibre.
Carat; purity of gold units, referred to as K. 1K = 1/24 pure gold, 18K gold contains 18/24 pure gold that the gold content of up to 75%.
Chronometer; astronomical tables (Observatory). Highly sophisticated watch while maintaining accurate time, subject to different angles, different temperatures passed the test, and obtain a formal certificate issued by the official watch.