Grand Seiko Spring Drive GMT SBGE001
Spring Drive
GMT hand
Automatic (hand winding capability)
Power reserve indicator
Power Reserve: Over 72 hours
Accuracy: +1 second per day
30 jewels
295 parts
High definition dual-curved sapphire crystal with anti-reflective coating
Screw crown
Stainless steel three-fold clasp with push button release
Rotating Sapphire bezel
Caliber 9R66