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Grand Seiko
Grand Seiko Spring Drive GMT 40.5mm SBGE255

Grand Seiko Spring Drive GMT 40.5mm


Grand Seiko
  • $6,200.00

or call: +1 (650) 347-2221
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A newly sized update to Grand Seiko's sporty, globe-trotting classic

The Grand Seiko Spring Drive GMT has long been a hallmark of the venerable brand's sport collection, and is now available for the first time in a new 40.5mm stainless steel case. Fitted with Grand Seiko's new Spring Drive 9R66 calibre, this sporty yet highly compact new reference is perfect for the international traveler whether he is in the conference room or at the beach house.

Like its larger 44mm cousin, the case and bracelet on this new reference is in stainless steel and rated to 200 meters of water resistance. The Spring Drive GMT caliber delivers a precision rate of one second per day and has a power reserve of 72 hours. The GMT hand can be adjusted to local time without stopping the movement so that the watch’s accuracy is maintained even when the time zone is changed.


  • Case Material: Stainless steel with ceramic bezel
  • Glass Material: Dual-curved sapphire
  • Glass Coating: Anti-reflective coating on inner surface
  • Lumi Brite on hands, indexes and bezel
  • Case size: Diameter 40.5mm × Thickness 14.7mm
  • Bracelet clasp: Three-fold with push button release
  • Caseback with Grand Seiko lion emblem


  • Caliber: 9R66 Spring Drive
  • Time, date, GMT (24-hour display), hacking seconds
  • Power reserve: Approx. 72 hours (3 days)
  • Accuracy: ±1 second per day / ±15 seconds per month (average)


  • Water resistance: 20 bar
  • Magnetic resistant
  • 24-hour hand (dual time display function)
  • Independently adjustable hour hand
  • Power reserve display
  • Rotating ceramic bezel (24-hour display)
  • Screw case back
  • Screw-down crown

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