Grand Seiko caliber 9R01

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Brand:Grand Seiko
Reference:9R01
Movement:Spring Drive
Display:Analog
Jewels:56
Reserve:192
Hands:Hours, Minutes
Additionals:Power Reserve Indicator
Grand Seiko caliber 9R01

9R01 description

Caliber 9R01 is a manual-wound movement based on Seiko's Spring Drive technology.

All Spring Drive movements already offer a remarkable 72 hours of power reserve, but this was extended for caliber 9R01. To maintain perfect timekeeping for up to eight days (192 hours) requires greatly increased power, which is provided by a linked series of three barrels. This remarkable caliber, 9R01, has also been designed throughout to maximize energy efficiency, reducing friction between parts that would otherwise lead to loss in the transmission of the energy derived from the mainspring.

Spring Drive is a unique watch technology. It generates energy like every other luxury mechanical watch but combines this with an electronic regulator to deliver a level of precision that no mechanical watch can match.
The development of Spring Drive was possible because Grand Seiko is one of the very few manufacturers with mastery of both electronic and mechanical watchmaking.

All watches using the Grand Seiko 9R01 movement:

Grand Seiko Spring Drive 8 Days Pink Gold / Black Stardust / Strap (SBGD202)

SBGD202 Grand Seiko Spring Drive 8 Days Pink Gold / Black Stardust / Strap
Grand Seiko Spring Drive 8 Days Platinum / White Diamond Dust / Strap (SBGD201)

SBGD201 Grand Seiko Spring Drive 8 Days Platinum / White Diamond Dust / Strap
Grand Seiko Spring Drive 8 Days Platinum / White Diamond Dust / Strap (SBGD001)

SBGD001 Grand Seiko Spring Drive 8 Days Platinum / White Diamond Dust / Strap
Grand Seiko Grand Seiko Heritage Collection Platinum / Shinshu (SBGD205)

SBGD205 Grand Seiko Grand Seiko Heritage Collection Platinum / Shinshu
Grand Seiko Spring Drive 8 Days Platinum / Mishaka Pond (SBGD207)

SBGD207 Grand Seiko Spring Drive 8 Days Platinum / Mishaka Pond