Matrix Industries, the smartwatch start-up, raised $12.3 million, according to a regulatory filing with the SEC. The company is still aiming to raise another $5 million, according to the filing.

Last November, Matrix Industries unveiled the Matrix PowerWatch, the world’s first smartwatch that uses thermoelectric technology so you never have to recharge or replace its battery. In January, an Indiegogo crowdfunding campaign raised $1.5 million.

Executives were listed in the filing as Akram Boukai and Douglas Tham, the co-founders who both have PhDs in chemistry from Caltech. Directors were listed in the filing as Vijit Sabnis, a venture partner of Khosla Ventures, and Elias Atiyyah, the founder of smartwatch maker Misfit.

Photo courtesy Matrix Industries