Patent ID: 7121165

Claim:
A tool for wristwatch, employed to remove a band connecting pin, a case back of wristwatch case or the like, said tool comprising: a substantially cylindrical tool main body having an inside wall, provided thereinside: a sliding shaft having a front end adapted to permit replaceable securing of a wristwatch tool component, said sliding shaft having the front end protruding from the tool main body; and hammering means, said hammering means comprising: a compression spring, and a hammering member adapted to be energized and slid toward the sliding shaft by the compression spring, and a trigger member capable of releasing a spring force of the compression spring when the compression spring has reached a predetermined compression level, the hammering member or the trigger member being urged so that it becomes biased to the inside wall of the tool main body, said sliding shaft and said hammering means so arranged that when the hammering member or the trigger member is urged from the biased position to an erect position, an instantaneous large force is applied to the wristwatch tool component by hammering a rear end of the sliding shaft by means of the hammering means.