At the core of the Heritage Spring Drive Shunbun SBGA413 lies the 9R65 caliber, a testament to Grand Seiko’s commitment to precision and craftsmanship. Assembled by the skilled artisans at the Shinshu Watch Studio, this Spring Drive movement combines the accuracy of quartz with the mechanical excellence of traditional craftsmanship.
The signature second hand glides seamlessly across the dial, mirroring the natural flow of time. The transparent case back offers a captivating view of the intricate movement within, inviting watch enthusiasts to admire the synergy of artistry and engineering.