Otsuka Lotec #5 "Kai" Stainless Steel UNWORN - Serial #18963 (Pre-Owned)Crafted by the visionary Jiro Katayama in his Tokyo studio, the No. 5 Kai is a masterclass in industrial brutalism and mechanical ingenuity. Courtesy of a module designed and built by Mr. Katayama, a wandering hour time display is implemented by way of three satellite hour discs traveling along the minute track positioned on the 3 o'clock side. Adjacent to the minute track lies a rotating disc indicating the seconds, and to the left of this disc is a