Grand Seiko SBGA439
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Description
An archetypal Grand Seiko design with a dial in midnight blue
A moonlit sky at night has a tantalizing and ever-changing hue which is captured perfectly in this midnight blue dial. Sometimes, the warmth of the blue is to the fore and, at others, the dial seems almost pitch black. Whatever its aspect, this dial is the perfect backdrop against which the diamond-cut hands and hour markers stand out in sharp relief.
Thanks to Grand Seiko’s unique Spring Drive movement, the seconds hand glides silently and smoothly, with no “tick”, across the dial, perfectly reflecting the natural and continuous flow of time. The power reserve is 72 hours when fully wound and is shown on the discreet indicator next to the eight o’clock index.
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Movement
Caliber Number: 9R65
Movement Type: Spring Drive
Precision: ±15 seconds per month (±1 second per day)
Power Reserve: Approximately 72 hours
Jewels: 30 jewels
Functions: '-Power reserve indicator -Date display
Case/Band
Case Material: Stainless steel
Thickness: 8.7 mm
Diameter: 34 mm
Lug-to-lug: 40.8 mm
Crystal: Dual-curved sapphire crystal
Crystal Coating: Anti-reflective coating on inner surface
Clasp: Three-fold clasp with push button release
Bracelet Length: 203mm
Distance between lugs: 10 bar
Other Details
Magnetic Resistance: 4,800 A/m
Features: Screw-down crown 30 jewels Power reserve indicator
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