Various categories of modern watches include: standard stem-winds automatics, chronographs, complicated (includin wrist ... Mechanical.ly a watch consists of a source of power; a train of wheels to transmit the power to an escapement which arrests ... motions of the wearer when the watch is bein worn, is the source of winding; this takes the ace of the manual winding of a standard watcfi) with a stem.
Title | : | The Encyclopedia Americana |
Author | : | |
Publisher | : | - 1962 |
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