We have a pretty dedicated and vocal collection of vintage Grand Seiko fans among the Fratelli. Many of the Fratello team are also Grand Seiko fans. The Japanese brand has a deep and fascinating back catalog with some absolutely stunning models. In 1962, designer Taro Tanaka unveiled his Grammar of Design, a set of principles that defined the brand's approach to watch design for years to come.It all boiled down to four basic commandments, but there are two that are most important for the purpose of this article: Firstly, all metallic surfaces and angles had to be flat, sharp, and geometrically perfect to reflect light best. Second, no visual distortion was allowed from any angle, and all cases and dial components should be mirror-finished. This design ethos led to some of the most remarkable watch cases ever, in my opinion. The sharp lines and angles are just a visual marvel, as much so today as they were back then.View this post on InstagramA post shared by LAPINIST (@lapinist_watchrestoration)