Seiko - Presage Sharp Edged Series Automatic GMT Black Dial - SPB221

Seiko - Presage Sharp Edged Series Automatic GMT Black Dial - SPB221

Contemporary angular case design
Fine mechanical watchmaking from Japan
Automatic GMT with manual winding capability
28,800 vibrations per hour 
Power reserve: approximately 45 hours 
29 jewels, caliber 6R64
Patterned Aitetsu black dial evoking the traditional Asanoha hemp leaf motif
of the Heian Period,
Power reserve indicator, Date display, 24-hour GMT hand,
LumiBrite hands & markers
Sapphire crystal with anti-reflective coating on the inner surface
Screwdown see-through caseback 
Case dimensions: Thickness 13.7mm, Diameter 42.2mm, Length 49.2mm
Stainless steel case and bracelet with super-hard coating
Tri-fold push button release clasp
Water-resistant to 10 bar, 100 meters (330 feet)