Seiko Prospex Speedtimer ‘Go Large’

This solar-powered chronograph timepiece is from the Prospex Speedtimer watch collection which represents Seiko’s professional timekeeping heritage.

In the 1960s, Seiko announced itself on the international sports timing stage with a whole new generation of high-precision equipment. Seiko timekeeping is endorsed by international sports federations at many of the world’s leading sports events, starting with the 1964 Olympics and continuing into the IAAF partnership today.

Adding to the popular ‘Speedtimer’ watch collection, this particular design features an increased ‘go large’ case size – the original was 39mm, whilst this piece is 41.4mm, featuring a tapered bracelet, aluminum bezel and tachymeter for increased practicality and visibility. Conveniently, this watch charges from both natural and electric light.

Prospex timepieces are practical, reliable and durable within extreme or everyday environments, for sports lovers and adventure seekers alike.

• Movement

Accuracy:±15 seconds per month (±1 second per day)

Calibre:V192

Movement Type: Solar

• Exterior

Dial Colour: Black

LumiBrite: Lumibrite on hands and indexes

Case Material: Stainless steel

Strap/Bracelet: Stainless steel

Clasp: Three-fold clasp with push button release

Case Diameter:41.4mm

Case Thickness:13.0mm

Case Length:45.9mm

Lug Width:21.0mm

• Other Specifications

Water Resistance:10 bar

Crystal Type: Curved sapphire crystal

Tachymeter function

Watch Function:24-hour hand, Chronograph up to 60 minutes in 1/5 second increments, Date display, Equipped with small seconds hand, Overcharge prevention function, Power reserve indicator