Prospex Speedtimer Solar Chronograph

Design inspired by Seiko's 1969 Speedtimer, one of the world's first automatic chronographs

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

Caliber: V192

Dial Color: Black dial with sunray finish and red accents

Hands and Markers: LumiBrite 
Crystal: Curved sapphire crystal with anti-reflective coating on the inner surface

Bezel: Dual-tone red and black tachymeter bezel

Case Back: Screwdown caseback

Case Diameter: 41.4mm

Case and Bracelet Material: Stainless steel case and bracelet

Clasp: Tri-fold push button release clasp

Water-Resistant: to 10 bar, 100 meters (330 feet)

Features: Date calendar, 24-hour subdial