Make sure to have your strap changing tool, strap and clasp on a clean flat surface and in a well lit room, to make the change easier.
With the round side of the strap changing tool, press the pin that attaches the clasp and strap inwards, this will loosen the clasp from the strap.
Remove the clasp from the strap.
Reverse the steps to put the clasp on to another strap.
Tusenö claims no responsibility for improper installation that results in damage to the watch, strap or clasp or any other material and/or personal harm of any type. If in doubt, we suggest consulting a local watchmaker or jeweler to properly install the strap/clasp for you.