The Speedbird is lovely – I was between that and the PRS3 and eventually went for the 3 Ltd edition (mainly due to it being a little bigger) when it first came out.
It just lets the side down! A proper strap, as above, is better made, more comfy (Sits between watch and skin) and can also be easier to replace/change, as there’s no need to remove the pins to do so. As such, you can easily have a different colour strap in a jiffy. Am on the lookout for a stupidly bright orange one. Not sure why. But I am!