I just imagine a band on the stage an the lead singer regularly looking at his watch - could well be misunderstood by the audience

But for me as a guitar player I could imagine using the watch on stage: If I moved it to the underside of my left hands wrist it would be in sight perfectly. It could display the current and next song and a few selected fields, e.g. chords and one custom field I use to identify the specific guitar to use for the song.
Will I get one? Really depends on the price: I would go for the stainless steel strap version (but not the luxury editon). If the recently
rumored price tag of around 350 $ is true that would be a sure buy. But I have also read about prices as high as 1,000 $ and that would be a show stopper.