Seiko Introduces Four New Prospex Speedtimers For The Road And Track
Seiko is expanding its Prospex Speedtimer collection with four new models inspired by the world of performance driving. The new watches are divided into two distinct pairs: the Prospex “Heritage Motoring” Countdown Speedtimers, which introduce a countdown function through an internal rotating bezel, and the Prospex Speedtimer “Grand Touring” Mechanical Chronographs, powered by Seiko’s automatic mechanical chronograph calibre.

Although they share the Speedtimer name and a motorsport-inspired design language, the two collections take quite different approaches to timing. The Heritage Motoring models concentrate on a practical 60-minute countdown display, while the Grand Touring watches offer a traditional mechanical chronograph with a tachymeter scale.
Prospex “Heritage Motoring” Countdown Speedtimer
The first pair consists of two three-hand watches distinguished by their internal countdown bezels. Rather than incorporating a conventional chronograph, Seiko has equipped the watches with a 60-minute rotating countdown scale, operated by a dedicated crown positioned at 4 o’clock.
The system allows the wearer to set the desired countdown against the minute hand, providing a straightforward way of monitoring a period of up to one hour. The concept fits naturally with the watches’ motorsport inspiration, where countdowns are closely associated with race starts and timed events, while also giving the watches a useful everyday function.

The stainless-steel cases measure 39.50 mm in diameter and 12 mm thick, with 200 metres of water resistance. The proportions make the watches relatively compact for the Prospex collection while retaining the robustness expected from the range.
The dial configuration prioritises legibility, with applied bar-shaped hour markers and luminous hour and minute hands. The layout remains deliberately clean, with the countdown scale positioned around the dial rather than adding the multiple sub-dials found on a chronograph.

Two colour combinations are available. The Powder Blue version uses a light blue dial and is fitted with a stainless-steel bracelet. It is priced at GBP 870. The Petrol Blue model adopts a darker blue tone inspired by 1970s performance cars and comes with a leather strap designed to evoke classic automotive interiors. Its price is GBP 840.
Inside both models is Seiko’s Calibre 6R55, an automatic movement offering a substantial 72-hour power reserve.
A solid stainless-steel caseback completes the practical construction.
Seiko Prospex Speedtimer, HBC003 (light blue dial), HBC004 (blue grey dial),. Light blue, blue grey dials, stainless steel case, 39.50 mm diameter, 12 thickness, sapphire crystal, 200 meters water resistance. Black leather strap (HBC004), stainless steel bracelet (HBC003). Calibre 6R55, automatic movement, hour, minutes, seconds, date, 21,600 Vph, 72 hours of power reserve. Price: GBP 840 (HBC004), GBP 870 (HBC003).
Prospex Speedtimer “Grand Touring” Mechanical Chronographs
The second pair takes a more traditional approach to motorsport timing. The Grand Touring Mechanical Chronographs combine a mechanical chronograph movement with a tachymeter scale and a dial layout designed around the visual character of long-distance performance driving.
At 42 mm in diameter and 14.60 mm thick, these watches are considerably larger than the Heritage Motoring Countdown Speedtimers. The additional dimensions accommodate the more complex mechanical architecture required by the chronograph movement while providing sufficient space for the three-register dial.

Both models feature vertically engraved dial patterns intended to evoke the visual impression of the road and the changing landscape experienced during a grand tour.
The Sky Blue model combines its blue base with contrasting black chronograph registers. These display the elapsed 30 minutes and 12 hours, while a third register provides running seconds. The Silver Grey version takes a more restrained approach, combining its grey dial with light blue and grey sub-dials.
A peripheral tachymeter scale completes the motorsport-oriented display, allowing the wearer to calculate average speed over a known distance.

Chronograph operation is handled by two traditional pump-style pushers positioned around the crown. The upper pusher starts and stops the chronograph, while the lower pusher resets the indications.
Powering both Grand Touring models is Seiko’s Calibre 8R48, an automatic mechanical chronograph movement incorporating a column wheel mechanism. The movement offers approximately 45 hours of power reserve.
The Sky Blue edition comes on a stainless-steel bracelet and is priced at GBP 2,340, while the Silver Grey model is fitted with a leather strap and costs GBP 2,250.
Seiko Prospex Speedtimer, HBD001 (sky blue dial), HBD002 (grey dial),. Sky blue, grey dials, stainless steel case, 42 mm diameter, 14.60 thickness, sapphire crystal, 100 meters water resistance. Grey leather strap (HBD002), stainless steel bracelet (HBD001). Calibre 8R48, automatic movement, hour, minutes, small seconds, date, chronograph, 21,600 Vph, 45 hours of power reserve. Price: GBP 2,250 (HBD002), GBP 2,340 (HBD001).
Updated Prospex Solar Speedtimers
Seiko is also refreshing part of its existing Prospex Speedtimer Solar lineup. Three established references are receiving new SKU numbers, while a new Racing Green version joins them.
The updated models include Speed Yellow, previously associated with the 2024 “Pogue” edition, as well as Grand Prix White and Champagne Gold. The new Racing Green model brings a fourth colour option to the refreshed group.
All four models are priced at GBP 670. For the Speed Yellow/Pogue model, this represents only a modest adjustment from its previous positioning, while bringing the four watches into line with the current pricing structure of the collection.



