item's stock number
539,000 yen including tax
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A royal yet glossy black dial model
This model combines Grand Seiko's royal case design with a glossy black dial.
The movement installed in this model is Seiko's original Spring Drive.
The second hand, which glides across the dial without sound, is one of the unique features of Spring Drive, and its natural movement, as if in harmony with the flow of time, is achieved by IC control. The maximum winding time is about 72 hours (about 3 days), and the remaining duration can be checked on the power reserve display on the lower left of the dial.
(technical) specification
movement Movement: 9R65
Driveline: Spring-driven automatic with manual winding
Duration: Approx. 72 hours (approx. 3 days) at maximum winding
Accuracy: ±15 seconds per month on average (equivalent to ±1 second per day)
Case Material Outer case: stainless steelBack cover: screw backGlass material: dual curved sapphire coating: internal anti-reflective coating
belt Inside clasp: one-push three-fold closure, maximum arm length: 203mm
waterproofing Reinforced waterproofing for daily life (10 atm)
Size Case size: 40.0 mm (width), 46.6 mm (height), 12.3 mm (thickness)
Band width: 20mm
Other Features Antimagnetic: Yes
Weight: 157 g
Screw lock crown
Number of jewels: 30
Power reserve indicator


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