Grand Seiko SBGJ255
CASE FUNCTIONS MOVEMENT Case Material High-intensity titanium Water resistance 10 bar Caliber no 9S86 Glass Material Dual-curved sapphire crystal Magnetic resistance 4,800 A/m Movement Type Automatic with manual winding Case size Diameter 40mm Lug-to-lug 46.2mm Thickness 14mm Weight 107.0 g Accuracy +5 to -3 seconds per day (mean...