German industrial design agency Botta Design are the creators of the lightweight SOLUS wristwatch. The elegant and unobtrusive design of SOLUS is reflected by combining functional clarity with simplicity.
Perhaps not as minimal in appearance as many other watches defined as such, but I feel SOLUS, which only weighs 28g, strikes the perfect balance of being easily readable whilst also having a lack of ornamental features. For instance, the watch only features one hand in order to focus on only what is absolutely necessary, which is the position of the hour hand.
Personal favourite is the solid black design. Refined, precise and beautiful.