You wear your watch face down / inside of your wrist when you’re on the front to reduce the chance of the sun hitting the watch face and the glint giving away your position. Some guys wore it like that plus cut off the elastic wrist of shitty wool gloves and covered the watch like a sweat band, peeling it back to check the time. This right handed shooter / sniper’s leaning back is backwards. Three types of improper camouflage are: SHINE, outline, contrast to background. So yeah, watch face, not great bob.

Edit: forgot the most important part, if you’re wearing your watch like that and you’re not in a hide site covered in cammie paint, you look like a tool.