Switzerland’s luxury brand, Ventura, manufacturer for the world’s first automatic digital watch, has announced plans for their second generation – The V-Tech Sigma ∑ MGS which will generate its own independent, constantly renewable power-source. It uses a micro-generator powered by the movements of the user’s wrist. The case uses a hardened material called Titanox. The generator is located on the top of the case and will be visible through a sapphire crystal glass for posterity purposes.

And I did not even know there was an automatic digital watch in the first place… Below are the first generations by Ventura, The SPARC px/fx series

Extract from Ventura