Patent ID: 7715281
Filing Date: 2010-05-11
Classification: G04B

Abstract:
1. An alarm watch including: (a) a mechanical movement driving time display means including at least a first hour hand and a first minute hand mounted above a first dial; (b) an alarm mechanism able to release an alarm at a predetermined alarm time, manually determined every twenty-four hours; and (c) means for displaying the predetermined alarm time, wherein the alarm time display means includes at least a second hour hand provided for cooperating with a twelve-hour dial for displaying the alarm time in twelve hours, and a mobile indicator that is arranged to occupy a first one of two positions when the alarm time is situated between midnight and midday, and that arranges to occupy a second one of the two positions when the alarm time is situated between midday and midnight, wherein the alarm mechanism includes a release wheel, wherein one complete revolution of the release wheel corresponds to travel of a twenty-four hour cycle by the alarm time, and wherein the second hour hand is kinematically connected to the release wheel so that one revolution of the release wheel corresponds to two revolutions of the second hour hand, and the alarm watch further includes (d) an AM/PM cam secured to the release wheel and a lever provided for cooperating with the AM/PM cam, the cam including two halves having semicircular profiles of different diameters, and the cam is angularly fitted to the release wheel so that the “12 hour” position of the second hand coincides with an encounter of the lever with one or other of two transition flanks formed by a junction of the halves.