Seiko Prospex Prospex Speedtimer Solar Chronograph SSC819 

• Prospex Speedtimer Solar Chronograph
• Design inspired by Seiko's first precision chronographs, developed for international sporting competitions in 1964
• Powered by light energy - no battery change required
• 6-month power reserve once fully charged
• Chronograph measures up to 60 minutes of elapsed time in 1/5-second increments with split time measurement function
• White dial with sand-blasted texture and black subdials
• Date calendar
• 24-hour subdial
• Beige LumiBrite hands and markers
• Curved sapphire crystal with anti-reflective coating on the inner surface
• Black tachymeter bezel
• Screwdown caseback
• Case diameter: 39.0mm
• Stainless steel case and bracelet
• Tri-fold push button release clasp
• Water-resistant to 10 bar, 100 meters (330 feet)
• Caliber V192