Grand Seiko Spring Drive 8-Day Power Reserve
The Grand Seiko Spring Drive 8-Day Power Reserve is a beautiful watch with Seiko’s innovative spring drive system, three mainspring barrels providing an eight-day power reserve, and superb finish by Seiko’s highest-end manufacturing unit, the Micro Artist Studio. It was introduced in 2016 as an 8-piece limited edition in platinum, and then in rose gold…