Abstract: A wrist-worn device clasp that secures a strap of the wrist-worn device. A first mechanical part of the wrist worn device interlocks with a second mechanical part by motion in a first plane in order to resist motion perpendicular to said first plane. The first mechanical part also inhibits a first securing part and a second securing part being separated by tension along the strap substantially perpendicular to the first plane when the first mechanical part and second mechanical part are engaged with each other. The first securing part and the second securing part inhibit separation of the first mechanical part and the second mechanical part by motion parallel to the first plane when they are engaged with each other by motion perpendicular to the first plane.

Abstract: A wrist-worn device clasp that secures a strap of the wrist-worn device. A first mechanical part of the wrist worn device interlocks with a second mechanical part by motion in a first plane in order to resist motion perpendicular to said first plane. The first mechanical part also inhibits a first securing part and a second securing part being separated by tension along the strap substantially perpendicular to the first plane when the first mechanical part and second mechanical part are engaged with each other. The first securing part and the second securing part inhibit separation of the first mechanical part and the second mechanical part by motion parallel to the first plane when they are engaged with each other by motion perpendicular to the first plane.

Abstract: A wrist-worn device clasp that secures a strap of the wrist-worn device. A first mechanical part of the wrist worn device interlocks with a second mechanical part by motion in a first plane in order to resist motion perpendicular to said first plane. The first mechanical part also inhibits a first securing part and a second securing part being separated by tension along the strap substantially perpendicular to the first plane when the first mechanical part and second mechanical part are engaged with each other. The first securing part and the second securing part inhibit separation of the first mechanical part and the second mechanical part by motion parallel to the first plane when they are engaged with each other by motion perpendicular to the first plane.

Abstract: A wrist-worn device clasp that secures a strap of the wrist-worn device. A first mechanical part of the wrist worn device interlocks with a second mechanical part by motion in a first plane in order to resist motion perpendicular to said first plane. The first mechanical part also inhibits a first securing part and a second securing part being separated by tension along the strap substantially perpendicular to the first plane when the first mechanical part and second mechanical part are engaged with each other. The first securing part and the second securing part inhibit separation of the first mechanical part and the second mechanical part by motion parallel to the first plane when they are engaged with each other by motion perpendicular to the first plane.