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Auto repeat countdown timer�a countdown timer (see �count-down timer�) that resets itself as soon as the preset time has elapsed and starts the countdown again. It repeats the countdown continuously until the wearer pushes the stop button. Subdial �a small dial within a watch dial used for any of several purposes, such as keeping track of elapsed minutes or hours on a chronograph or indicating the date. Repeater A repeater watch is a complication watch that indicates the hours by means of striking gongs �a function activated by a pushpiece or slide. There are several types of repeater watches: Quarter-Hour Repeaters�This type of mechanism is designed to strike the hours and quarter-hours. A lowpitched gong is struck to indicate the hour, while quarterhours are indicated by a low and a high note struck together. Half-Quarter Repeaters�This type of mechanism is designed to strike the hours, quarter-hours and half-quarter hours, i.e. 7.5 minutes after the quarter-hour. A low-pitched (bass) gong is struck to indicate the hour, quarter-hours being indicated by a combination of bass and treble notes, the first half of the quarter-hour by a single treble note and the second half by two treble notes.  Five-minute Repeaters�These come in two versions: A bass note is struck to indicate the hours, and a treble note for every five minutes, rather than for every quarter-hour. A bass note is struck for the hours, combined bass and treble notes for the quarter-hours, and a treble note every five minutes in addition to the quarter-hour. Minute Repeaters � watches that strike or sound the hours and minutes on demand by activating a button. Grandes Sonneries�(GRAHND sohn er EE) �this mechanism is designed to strike the hours and quarter-hours en passant, i.e. automatically, in a way similar to the traditional pendulum clock. A pushpiece, or a slide, makes it possible to select striking the hours, quarter-hours and minutes.
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