Reallydeskbound, with the expectation of inbound about being a watch spotter I will attempt to help!
Pull out the crown to the first click and then push one of the other 3 buttons, all control one of the functions, am not that much of a spotter (nor am I obviously able to spell breightling/brieghtling - oh whatever!!) to be able to tell you which button does what but hope it helps!
DB