I looked at the pix, I looked at the junk on my desk and compared my deskware and wrist vs the pix, and assuming I have a male model physique, that watch is a bit bigger than a sigg water bottle but a cm or so smaller than my large coffee (tea) cup. Its huge.

So... yeah, strap a couple pound weight to your arm, and until you bulk up, there's going to be some sagging by the end of the day.