Prospex Speedtimer Solar Chronograph - SSC939

Story

A solar-powered timepiece with a ’70s motorsports aesthetic

Inspired by classic motorsports of the ’70s and Seiko’s original 1969 Speedtimer watch—the world’s first self-winding chronograph—the Prospex Speedtimer features a curved, sapphire crystal with an anti-reflection coating. And it’s solar-powered by Seiko’s Caliber V192 movement, which has an impressive 6-month power reserve once fully charged. As for the watch’s color palette, grand touring cars of the era can be seen in the navy blue tachymeter bezel, black subdials, and handsome gray dial. What’s more, there’s a 24-hour sub-dial as well as 2 additional sub-dials for the Prospex’s chronograph feature, which records up to 60 minutes of elapsed time in 1/5-second increments. Last but not least, LumiBrite hands and markers provide a crystal clear view of both time and the date window.

Features

• Inspired by Seiko’s original 1969 Speedtimer and the classic motorsports of the ’70s
• Navy blue tachymeter bezel, contrasting black subdials, and gray dial
• Chronograph measures up to 60 minutes of elapsed time in 1/5-second increments
• 24-hour subdial and date calendar
• LumiBrite hands and markers for crystal clear visibility
• Secure, screwdown caseback
• Tri-fold push-button clasp for a secure wear on the wrist
• Battery-free, solar-powered design with a 6-month power reserve once fully charged

Materials

• Case: Stainless steel
• Crystal: Curved sapphire crystal with anti-reflection coating on the inner surface
• Strap: Stainless steel

Specs

Diameter	41.4mm
Thickness	13mm
Length	45.9mm
Movement	Caliber V192
Power Reserve	6 months once fully charged
Water Resistance	10 bar, 100 meters (330 feet)
Dial Color	Gray
Lug Width	21mm

About Seiko

When we think of Seiko, one word comes to mind: legacy. Founded in 1881 by entrepreneur Kintaro Hattor in the heart of Tokyo, Seiko knows every nook and cranny of what makes an elite watch truly incredible. In those 130+ years, they came up with lasting innovations like the first quartz watch, the first titanium dive watch, and the first multi-functional digital watch. Needless to say, Seiko continues to push the watch game forward.