The 56GS line-up was the last mechanical series from Grand Seiko, mass-produced from 1970 to 1974 in a wide variety of models. The production process of the 56GS series was partially automated and used the 5646 28,800bph movement, which provided the right balance of accuracy and reliability. Grand Seiko had previously introduced higher precision models, with a movement speed of 36,000bph, but such high frequency can come at the expense of reliability.
 
Today's offering is one of the rarest models from the 56GS series, the 5646-7040. Most likely made for only one month in June 1973, it is the only 56GS model that features Arabic numerals on the dial and a beautiful steel case with a hammered bezel giving it more shine. This model is unique since it doesn't follow the Grammar of Design philosophy, and that’s exactly what makes it so special. But the real love affair actually starts once you put it on the wrist and the daylight hits it, from the planted Arabic indexes to the shine of the dial complemented with the case, and the perfect size makes it a treat.
 
We're excited to offer a stunning example of this rare model in a set paired with its original buckle, box, and outer box. While you might have reservations about acquiring such an unconventional piece from the vintage Grand Seiko collection, trust us—it’s an acquisition you won’t regret.

Ships from Tokyo, Japan