The Seiko Prospex Speedtimer SSC909P1 is a solar-powered chronograph watch with a 39mm stainless steel case, a blue dial, and a sapphire crystal.

Movement and functions

• Movement: Seiko V192 solar movement, powered by light with a 6-month power reserve on a full charge.
• Functions:
  • Chronograph up to 60 minutes in 1/5 second increments.
  • Tachymeter function.
  • 24-hour hand.
  • Small seconds hand.
  • Date display.
  • Overcharge prevention function.
  • Display function of resuming electric power generation.
• Accuracy: ±15 seconds per month.