We're running out of things to pull from this Pebble's chassis. Those quality control markings prove difficult to grasp with our tweezers.

We asked and Pebble answered: these marks are confirmation that the rear case passed a water resistance inspection, which every rear case is subjected to before it gets to become a Time.

We manage to seize hold of this small c-clip securing the back button, which obligingly comes free for inspection.

The springy button is waterproofed by a small rubber o-ring.