Seiko’s sports timing tradition inspires the next generation of Prospex Speedtimer

Inspired by the 1969 Speedtimer, the case shape and visual identity of this solar-powered Seiko Prospex Speedtimer remains faithful to the original, but the combination of hairline and smooth polishing on the bracelet and the curved sapphire glass bring it right up to date. New for 2026 comes a trio of updated Speedtimer dial executions, which retain the proportions and on-wrist footprint of this reference's best-selling predecessor. 

Powered by Seiko's very own Caliber V192, this Speedtimer offers a 24-hour indicator, a time of day seconds hand, a 60-minute chronograph in a sub-dial at six o’clock and a power reserve function, which reflects the watch's ability to run autonomously for approximately six months when fully charged. 

Specifications

Movement

• Caliber Number: V192
• Movement Type: Solar
• Accuracy: ±15 seconds per month
• Duration: Operating for approx. 6 months (when fully charged)

Exterior

• Case Material: Stainless steel
• Crystal: Curved sapphire crystal
• Crystal Coating: Anti-reflective coating on inner surface
• LumiBrite: LumiBrite on hands and indexes
• Clasp: Three-fold clasp with push button release

Other Detail

• Water Resistance: 10 bar
• Case Size: 39 ㎜
• Thickness: 13,3 ㎜
• Length: 45.5 ㎜
  

Other Specifications

• Screwdown case back
• Tachymeter function

Other Features

• 24-hour indicator at 3H
• Chronograph up to 60 minutes in 1/5 second increments
• Date display
• Display function of resuming electric power generation.
• Equipped with small seconds hand
• Overcharge prevention function