I think I checked if there was request for this feature, but I didn't find it. If I am mistaken, please delete this post.
As a person who sometimes need to work outside (or sometimes work out outside) feature where I can activate time measuring would be awesome. I know that I can do that through phone but when it's cold and phone is in briefcase it can be hard. Also during work out I put phone into "bag" attached to my bike so its problematic. So of my friend have phones with active sim card inside to for work out they are not taking phone with them. For those people using WorkingHour to be used by watch would be good.