Patent ID: 7942574

Claim:
A portable watch comprising: a watch exterior member which is equipped with a case band and which has a crown mounting hole formed so as to extend radially through the case band and a member mounting portion communicating with a portion of the crown mounting hole offset from a central portion of the crown mounting hole, vertically perpendicular to the crown mounting hole, and formed in the case band so as to be open at an upper end; a crown which has a crown shaft equipped with a peripherally continuous lock groove and a crown head portion continuous with this shaft and which is arranged with the crown shaft inserted into the crown mounting hole; a crown lock member which has an operation end portion protruding from the open upper end of the member mounting portion and is accommodated in the member mounting portion, which is movable between a lock position where it is engaged with the lock groove to constrain the crown and a lock canceling position where it is off the lock groove and cancels the constraint of the crown, and which is arranged at the lock canceling position through a one-touch operation of the operation end portion; and an urging member accommodated in the member mounting portion and urging the crown lock member so as to arrange it at the lock position.