Timepiece which permits freely adjusting the level of sounds produced therein and given out thereof

In a timepiece equipped with a mechanical unit including sound producing means for producing a time-ticking sound, such as an escapement having isochronism,

• the improvement comprising,
• an outer casing;
• a sound proof inner casing within said outer casing, said inner casing containing said mechanical unit;
• buffer means supporting said inner casing in spaced relation to said outer casing, said buffer means accoustically isolating said inner casing from said outer casing;
• sound level adjusting means for conveying sound produced by the mechanical unit from said inner casing, said sound level adjusting means including means for freely adjusting the level of the sound conveyed from said inner casing in a range from a condition of essentially silence to a predetermined level;
• and
• means for enlarging the sound conveyed from the inner casing.