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    • 28. 发明公开
    • PIECE D'HORLOGERIE A AFFICHAGE DIGITAL
    • 用数字显示时钟
    • EP1943564A2
    • 2008-07-16
    • EP06806031.8
    • 2006-10-04
    • Frédéric Piguet S.A.
    • ROCHAT, Marco
    • G04B19/21
    • G04B19/21
    • A timepiece comprises a mechanical or electromechanical movement and is provided with a digital display (204, 316, 416, 530) consisting of four drums which are cinematically connected to each other, wherein the first drum (204) displays minutes by means of a scale (0-1-2-3-4-5-6-7-8-9), the second drum (316) displays tens of minutes by means of a scale (0-1-2-3-4-5), the third drum (416) displays hours by means of a scale graduation (0-1-2-3-4-5- 6-7-8-9) and the fourth drum (530) displays tens of hours by means of a scale (0-1-2), thereby enabling the four drums (204, 316, 416, 530) to provide a current time digital display around-the-clock. Said invention is characterised in that the third drum (416) comprises first means interacting with second means carried by the fourth drum (530) in such a way that said third drum (416) is enabled to move forward to one division per hour in normal time, i.e. between 00h00 and 23h59 and to pass from the division '3' to the division '0' when the display passes from 23h59 to 00h00.