Abstract: An interface for actuating a device is described. According to one aspect, an interface for actuating a device includes a boss member arranged to be extended from a shaft to receive a user's manipulation, wherein when the boss member receives the user's manipulation, the boss member is arranged to project the shaft to an actuating position arranged to actuate the device.

Abstract: A trigger mechanism for remotely operating the chronograph functions of a watch. A lever mounted to the watchcase is swingable about a pivotal connection for rotating a cylindrical cam. A rotary cam follower is displaced by the cam. A striker member extending from the cam follower actuates a pushbutton for controlling the chronograph functions.

Abstract: A coupling pin connection for releasably attaching a watchband to a watchcase. The watchband includes an end connector that defines an aperture for interfitting engagement with a lug member projecting from the watchcase. The lug member defines a groove in communication with a recessed section formed in the watchcase. The end connector includes bore extending through shoulder portions on opposite sides of the aperture. A coupling pin member is selectively insertable through registered alignment of the bore and the groove. The coupling pin member further includes a spline. The spline is adapted for engagement within the recessed section when the coupling pin member is rotatable about its longitudinal axis to provide positive securement of the watchband to the watchcase.

Abstract: A releasable coupling assembly for securing a wristband to a watchcase. A pair of lug members extending from a top and a bottom sidewall of the watchcase provides respective alignment slots. The respective ends of a flexible wristband include a rigid connector member and guide pins registrable with the alignment slots. The sidewall has a notched surface adapted for engaging a complementary raised surface of the connector member to securely position the wristband with respect to the watchcase. A locking pin is selectively insertable through an aperture in one of said lug members and threadably connected to the other of said lug members to form an integral connection with the watchcase.