[ Grand Seiko Heritage Collection ]


Case :High-intensity titanium
Glass :Dual-curved sapphire
Coating :Anti-reflective coating on inner surface
Case size : Diameter 41mm × Length 49mm × Thickness 12.5mm
The perimeter of bracelet :193mm
Movement : Caliber 9R65    Instructions
Movement Type :Spring Drive
Power reserve :Approx. 72 hours(3 days)
Accuracy :±1 second per day / ±15 seconds per month (average)
Functions / Specifications
Clasp :Three-fold clasp with push button release
Water resistance :10 bar
Magnetic resistance :Magnetic resistance
Other details :
  • ・30 jewels
  • ・Against an allergic reaction to metal
  • ・Case back with lion emblem
  • ・Date display
  • ・Power reserve display
  • ・Screw case back
  • ・Screw-down crown
  • ・See-through case back
  • ・Stop seconds hand function


A Spring Drive model with a high-intensity titanium case

The SBGA259 is powered by Spring Drive, Grand Seiko’s unique caliber,
which combines the motive force of a mainspring found with the high
precision of a quartz watch.

The case and bracelet are made with high-intensity titanium, providing a
scratch and corrosion resistant finish, making it 30% lighter than
stainless steel and a pleasure to wear.

The second hand moves smoothly in glide motion, and glows over the
contrasting pure white face to create an even more dramatic movement. 

It has a 72-hour (3-day) power reserve, and a power reserve indicator on the bottom left of the dial.