Design submitted by Sam from Germany.
The dot watch design is made of a single flexible strap which is covered with a stretchable and retractable PVC-based sheet. In the center lays a mechanism which consists of three cylinders. One cylinder is always visible as it presses against the sheet from the inside. You can only see a dot, not the full cylinder – this is the ON button.
When you press the button, two more cylinders rise up and press against the sheet from the inside. The dot that was pressed down is now seen as the center of an analog watch. The two additional dots indicate the hour and minutes. The big dot which is closer to the center indicates hour, the smaller one farthest from the center indicates minutes.
After five seconds all dots disappear except the center one. If it is too dark to see the time, the center dot can be pressed twice and all dots will lit up. Holding the center dot for 10 seconds brings you to the set mode.