At Octon we believe in customising your watch to your own unique style and changing the strap/bracelet to suit the occasion. We have chosen to have lug holes on our watches (the small holes on the sides of the case) which is a tribute to vintage watch styling but also a very effective solution to enable easy strap changes.
As shown in the picture on the left below, simply push the spring bar removal tool in to the lug hole and use inward pressure to release the spring bar and remove the strap. If removing the stainless steel bracelet, it can be useful to use another spring bar removal tool (or tooth pick) to apply equal inward pressure on the opposite lug hole in order to more easily release the spring bar and remove the stainless steel bracelet (as shown in the picture on the right below).