Grand Seiko Sport Collection Mechanical GMT SBGJ237

Brand: Grand Seiko 
Reference: SBGJ237
Movement: Automatic 
Caliber: 9S86
Dial Color: Black
Glass Material: Dual curve sapphire glass with anti-reflective coating 
Case material: Stainless steel 
Bracelet/Strap: Stainless steel
Back: Screw back
Case Diameter: 44.2 mm 
Thickness: 14.4 mm 
Precision: +5~-3 seconds/ day 
Water-resistance: Waterproof to 200 meters / 660 feet
Remarks: Screw down crown, Rotating bezel, GMT,