Grand Seiko SBGW231
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Reference Number: SBGW231
GTIN: 029665192158

Grand Seiko SBGW231

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The Grand Seiko SGBW231 comes with a crocodile strap and is cased with the best quality stainless steel. It has a glassed surface made with box-shaped sapphire crystal.


  • Glass: Box-shaped sapphire crystal
  • Glass coating: Inner anti-reflective coating
  • Case: Stainless steel
  • Case size: 37.3mm diameter × 11.6mm thickness
  • Strap: Crocodile leather strap

The Grand Seiko SGBW231 is beautifully glazed with authentic sapphire crystal, which is box-shaped and polished to give a seamless symmetrical finish. The box-shaped sapphire crystal is coated generously with an inner anti-reflective coating to prevent glare in the watch.
The SGBW231 model is cased by scratch and corrosion-resistant stainless steel, 37.3mm in diameter and 11.6mm in thickness.
The SGBW231 model comes with comfortable, authentic hand-sewn crocodile leather straps. These straps are durable and are guaranteed to last years, even with consistent use.


  • Functions: Hours, minutes, seconds
  • Water resistance: Splash resistant/30 meters
  • Magnetic resistance: Fully equipped
  • Weight: 61.0 grams
  • 24 jewels
  • See-through case back
  • Case back with six screws
  • Case back with the lion emblem

The Grand Seiko SGBW231 has considerable water protection. It has been laboratory tested and proven to be water splash resistant, and can remain stable underwater up to 30 meters.
The SGBW231 model is also fully resistant to different magnetic fields. It was specifically designed so that an internal magnetic field does not form, which would disrupt its functioning.
The SGBW231 model weighs just 61.0 grams. It is sleek with silver strokes to indicate the hour mark and sharply cut, eye-catching hands that show the hour, minute, and second.
The Grand Seiko SGBW231 case is see-through, allowing the wearer to appreciate the exquisite machinery of the watch without opening the watch case. The case back is adorned with the legendary lion emblem of the Grand Seiko brand and is screwed down neatly with six screws.


  • Movement type: Mechanical with manual winding
  • Power reserve: 72 hours
  • Accuracy: -3 to +5 seconds per day (static usage)/ +10 to -1 seconds per day (normal usage)
  • Caliber no.: 9S64

Just like the collectible classics, the Grand Seiko SGBW231 is built with mechanical movement consisting of 24 jewels expertly rigged together by hand. It is an automatic wristwatch with a power reserve of 72 hours.
The Grand Seiko SGBW231 model is a proud member of the Grand Seiko Elegance collection. With the 9S64 caliber, the SGBW231 is a physical testament to Japanese technological ingenuity.
The Grand Seiko SGBW231 has a stellar accuracy of -3 to +5 seconds per day while remaining static, and an accuracy of +10 to -1 seconds per day during normal usage. The accuracy ranges fall in at 99.9% on the COSC standard for mechanical watches.

Here at Exquisite Timepieces, the Grand Seiko SGBW231 costs $4,300 USD.

Watch Features

CaseStainless Steel
Case BackExhibition
Case Width37.3mm
Case Thickness11.6mm
CrystalSapphire Crystal
Dial ColorCream
Dial MarkersIndexes
FunctionsHours, Minutes, Seconds
MovementMechanical Manual, Calibre 9S64, 72 hours power reserve, 4,800 A/m [60 Gauss], Accuracy: -3 - +5 Sec per Day
Water Resistance30m
Bracelet StrapAlligator Leather Strap
Warranty5 Year
BrandGrand Seiko

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