Grand Seiko Mechanical Hi-Beat GMT SBGJ003

Caliber: 9S86

Movement: Mechanical Automatic (Hand winding capability)

Case Material: Stainless steel

Case Back: See-through screw case back with sapphire crystal

Glass: High definition dual-curved sapphire crystal with anti-reflective coating

Bracelet: Solid stainless steel

Buckle Stainless: steel with three-fold clasp with push button release

Accuracy: +5 ~ -3 seconds/ day

Water Resistance: 10 bar

Magnetic Resistance: 4800 A/m (60 gauss)

Weight: 151g

Case Thickness: 14.0 mm

Case Diameter: 40.0mm

Jewels: 37

Crown: Screw crown