Spring Drive Eight-Day Power Reserve, passion and creativity 2026

Michael Goldman
Spring Drive Eight-Day Power Reserve, passion and creativity - grandgoldman.com
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Precision, legibility and comfort are the historical attributes thatGand Seikohas permeated his new creation: theSpring Drive Eight-Day Power Reserve. A watch that directs the essential values of the Japanese house towards new and enriching horizons.

Spring Drive Eight-day Power Reserve

Manufactured under the consistency and creative excellence of the Micro Artist studio, theSpring Drive Eight-Day Power ReserveIt offers an eight-day power reserve along with the quality of materials and distinctive finishes of the prestigious studio.


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Spring Drive Eight-day Power Reserve

The sapphire crystal case back offers a clear view of the exquisite one-piece finish, the rubies and the power reserve indicator. This one-piece bridge ensures precise placement of each wheel on the gear, and maximizes the efficiency of the transmission to the barrels. Its rigidity also prevents any distortion at the moment of impact or other type of blow.

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Spring Drive Eight-day Power Reserve

Furthermore, the bridge marks the outline of Mount Fuji, and the finely polished rubies and blue tempered screws evoke the lights of the city of Suwa, where the studio is located. The box of theSpring Drive Eight-Day Power ReserveIt is made of a special platinum that can be polished to a mirror finish using the Zaratsu technique, which was adapted for use on this material.

 

Watch FeaturesSpring Drive Eight-Day Power Reserve (SBGD001)

  • Movement: Caliber 9R01
  • Adjustment system: Mechanical manual loading
  • Power reserve: 8 days (192 hours)
  • Accuracy: ±0.5 seconds per day (±10 seconds per month). Power reserve indicator. Independent adjustment of the hour hand
  • Number of rubies: 56
  • Number of components: 307
  • Case diameter: 37.0mm
  • Thickness: 7.1mm
  • Case: 950 Platinum. High-definition double-curved sapphire crystal with anti-reflective coating. Transparent screw-down case back
  • Water resistance: 10 bars
  • Magnetic resistance: 4,800 A/m
  • Diameter: 43.0mm,
  • Thickness: 13.2mm
  • Strap: Crocodile leather with three-fold clasp that releases at the touch of a button
  • Recommended RRP model SBGD001: €60,000
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Michael Goldman

Author

Michael Goldman

Michael is an award-winning online reporter and content writer with over a decade of experience covering technology, business, and digital culture. His investigative features have been published in leading outlets such as Wired, The Verge, and Forbes, earning him recognition for accuracy and depth.


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