The story
Bell & Ross was founded in 1994 as a university project between Bruno Belamich (Bell) and Carlos A. Rosillo (Ross). The company's watches were originally produced by the German company Sinn, but the partnership was dissolved in 2002 soon after Chanel became a minority shareholder, and production was subsequently moved to Switzerland. Starting with its model BR-01 in 2005, the company began producing square watches meant to resemble instruments found in aircraft cockpits, The company's square-cased BR models became its most well-known design. The company divides production among three types of watches: Aviation, Marine and Vintage. The types of watches differ by the size and shape of the case, the movement, and the dial layout.
From Wikipedia’s article on Bell & Ross, shared under CC BY-SA 4.0.5