The Speedtimer Prospex watch collection represents Seiko’s professional timekeeping heritage and takes inspiration from the brand’s innovative history.

This particular design is powered by a new in-house solar chronograph calibre equipped with a stopwatch which measures time to the nearest 1/100th of a second.

Becoming official timekeeper for Tokyo’s 1964 Olympics was a turning point in Seiko’s history when the brand began making precisely accurate professional sports timing instruments, with no prior experience. This legacy continues today as Seiko is the World Athletics Official Timekeeper since 1985, supplying timing and measurement services to more than 180 World Athletics events in every corner of the globe.

The dial of this particular timepiece achieves visibility and legibility due to its separate indicators for time and chronograph functions – its monochrome colourways give it the nickname from Seiko fans as a ‘panda’ style. Conveniently solar-powered; the watch charges from both natural and electric light.

The hammer-shaped button allows for easier operability of the stopwatch function. This model is powered by the in-house built Solar chronograph calibre 8A50 that allows measurement to the nearest one-hundredth of a second.

Prospex is a combination of the words ‘Professional’ and ‘Specifications.’ Seiko Prospex timepieces are designed to be practical, reliable and durable; to meet the high standards required in extreme environments for sports lovers and adventure seekers alike.

Movement

Accuracy: -15/+15 seconds per month
Calibre: 8A50
Movement Type: Quartz Solar
Power Reserve: Operating for approx. 6 months (when fully charged)
Watch Case
Case Material: Stainless Steel
Case Thickness: 12.9mm
Case Diameter: 42.0mm
Case Length: 48.3mm
Lug Width: 20.0mm

Exterior

Dial Colour: Black
LumiBrite: Lumibrite on hands and indexes
Clasp: Three-fold clasp with push button release
Strap/Bracelet: Stainless Steel

Other Specifications

Water Resistance: 10 bar
Weight: 152.0g
Crystal Coating: Anti-reflective coating on inner surface
Crystal Type: Curved Sapphire Crystal
Screw case back

Watch Function
Chronograph up to 60 minutes in 1/100 second increments, Overcharge prevention function

Seiko Prospex Panda One Hundredth of a Second Speedtimer Solar Chronograph

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