Grand Seiko Mechanical SBGJ203

Brand: Grand Seiko 
Reference: SBGJ203
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: See-through back, screw back
Case Diameter: 40.0 mm 
Thickness: 14.0 mm 
Weight: 159 g 
Precision: +5～-3 seconds/ day 
Water-resistance: Waterproof to 100 meters / 330 feet