Grand Seiko Evolution 9 Collection Chronograph GMT SBGC251G

Grand Seiko Evolution 9 Collection Chronograph GMT SBGC251G

Powered by Caliber 9R86, this Spring Drive chronograph delivers state of the art precision in the measurement of time of day and elapsed time and yet has a quiet and refined aspect that belies its high functionality. The chronograph measures elapsed time up to 12 hours and the seconds hand moves in perfect, continuous and silent glide motion as it does so. The GMT hand allows time in another time zone to be shown exactly and the hour hand can be adjusted to a new zone without compromising the accuracy of the timekeeping. 

Case Material  High-intensity titanium
Glass Material  Dual-curved sapphire crystal
Glass Coating  Anti-reflective coating on inner surface
LumiBrite  LumiBrite on hands, index(es) and bezel
Case size  Diameter 45.3mm  Lug-to-lug 52.6mm  Thickness 15.8mm
Clasp type  Three-fold clasp with push button release


Caliber no.  9R86   
Movement Type  Spring Drive
Power reserve  Approx. 72 hours(3 days)
Accuracy  ±15 seconds per month (±1 second per day)


Water resistance  10 bar
Magnetic resistance  4,800 A/m
Other details / Features 
  • 24-hour hand (dual time display function)
  • 50 jewels
  • Allergy-safe metal
  • Calendar-linked time difference adjustment function
  • Chronograph with 30 minutes & 12 hours
  • Power reserve indicator
  • Rotating bezel
  • Screw case back
  • Screw-down crown
  • See-through case back
  • Stop second hand function