This is a limited edition for the US only.
Assembled at the Shinshu Watch Studio in Japan, where all Grand Seiko 9R Spring Drive are manufactured and created, the Spring Drive 9R15/65 timepieces are designed, adjusted and tested by hand, by acclaimed craftsmen and women. A completely unique caliber, Spring Drive is powered solely by the motive force of a mainspring, as any luxury mechanical watch. What distinguishes it is its use of an exclusive escapement system using three different forms of energy (mechanical, electric, and electromagnetic) to regulate its precision. This mechanism, known as the Tri-Synchro Regulator, enables an astounding precision nearly unattainable by any other mechanical watch. In both performance and appearance, it expresses the very best of Grand Seiko’s watchmaking.
Both dial and movement are enclosed in the iconic 44GS case design and dual-curved sapphire crystal. The perfectly flat and mirror polished surfaces shaped by Zaratsu finishing create a sense of harmony between the light and shadow. The gradient expressions of light and shadow found in Grand Seiko are based on Japanese aesthetic. Without one there cannot be the other. This principle changed the standard of Grand Seiko design from 1967 forward.
