The Tessina is a miniature camera that is worn around the wrist like a watch! This vintage gadget, invented by Swiss engineer Rudolph Steineck in 1957, uses a conventional 35mm film for pictures of 14 x 21 mm. It’s also equipped with a 25 mm f/2.8 Tessinon lens. This Tessina camera was manufactured until 1996, and it was perfect at the time for airline pilots for example. It is the Reddit user Catchoooo who discovered this awesome gadget from his grandfather.
Images © Catchoooo / source