Sitting at either end of the watchmaking spectrum, there are mechanical watches and there are digital watches. They couldn't be further apart. Think digital watch and you think of the Casio G-Shock, the modern face of timekeeping; think mechanical and you think of one of Patek Philippe's micro-engineering masterpieces, a bastion of tradition. But there's a strange overlap that exists where the two meet, a sort of watchmaking twilight zone where two polar opposites come together and digital becomes mechanical. Welcome to the A. Lange & Söhne Zeitwerk, the mechanical, digital wristwatch.