Grand Seiko Elegance – SBGW231G Mechanical Manual Wind Watch


A 3-day power reserve with lasting quality

The watch has a 3-day power reserve and combines the latest in hairspring technology with an escapement developed through the MEMS technology to achieve high accuracy and stability when worn.
The delicacy, strength and beauty of the movement can be enjoyed the exhibition case back.

Reference: SBGW231G

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Grand Seiko Elegance – SBGW231G Mechanical Manual Wind Watch

Grand Seiko Mechanical Manual Winding



  • Exterior: Stainless steel
  • Case back: See-through case back
  • Case back with 6 screws
  • Glass Material: Box shaped sapphire crystal
  • Glass Coating: Anti-reflective coating on inner surface
  • Case size: Diameter 37.3mm Lug-to-lug 44.3mm Thickness 11.6mm
  • Band width: 19mm
  • Band Material: Crocodile leather


  • Caliber no.: 9S64 Instructions
  • Movement Type: Manual winding
  • Power reserve: Approx. 72 hours(3 days)
  • Mean daily rate: +5 to -3 seconds per day
  • Mean daily rate is a mean value of daily rates in a condition where the movement before assembly in a case is measured in six positions in a fixed manner under artificially controlled environment for 12 days.
  • Normal Usage Accuracy: +10 to -1 seconds per day


  • Water resistance: Splash Resistant
  • Magnetic resistance: 4,800 A/m
  • Weight: 61 g

Other details / Features:

  • 24 jewels

Reference: SBGW231G

Additional information


Grand Seiko



Watch Movement

Manual Winding

Case Size



Stainless Steel