SEIKO PROSPEX SPEEDTIMER Mechanical Chronograph

SPEEDTIMER Mechanical Chronograph SRQ037J1
SPEEDTIMER Mechanical Chronograph SRQ043J1
SPEEDTIMER Mechanical Chronograph SRQ039J1
SPEEDTIMER Mechanical Chronograph SRQ035J1

Mechanical Chronograph lineup

SRQ037J1
SRQ043J1
SRQ039J1
SRQ035J1

The Caliber 8R Series.

Designed for maximum precision
in every aspect.

All watches are powered by Caliber 8R46, the brand’s most advanced automatic chronograph movement for mechanical watches. This caliber incorporates both vertical clutch and column wheel mechanisms which ensure the precision and durability. The escapement is lightweight and strong, thanks to the use of MEMS technology which enhances the stability of the watch's precision. With the push of the reset button, the hands return back to zero instantly and in perfect synchronization.

This caliber is designed and hand assembled completely in-house by Seiko's most skilled watchmakers.

SPEEDTIMER Mechanical Chronograph SRQ037J1

Photo of SPEEDTIMER Mechanical Chronograph

SPECIAL MOVIE

Original model

The charcoal-gray dialed Speedtimer is inspired from Seiko's and Japan's first chronograph wristwatch, the Crown Chronograph from 1964. The 1964 Crown Chronograph was designed from scratch and it marked the beginning of Seiko's chronograph wristwatch manufacturing. It had a simple one-push mechanism but it amply demonstrated the same commitment to precision as would Caliber 6139 and all its successors with the inclusion of a column wheel to control the start, stop and reset functions.

1964

Crown chronograph

Dial

The dial design is a subtle nod to the 1964 Crown Chronograph. Its beveled hour markers, sharp hour and minute hands with colored Lumibrite, its chronograph pushers and markers on the outer dial ring echo the design of the original.
The chronograph second hand is gently curved down towards the dial so that the tip of the hand is as close as possible to the dial's markers and extends to the tachymeter markings at the very edge of the dial, thus ensuring that elapsed time can be read accurately at a glance.
Push buttons

The construction of the chronograph pushers ensure the high level of operability crucial to a Prospex sports watch.
Bracelet

The watch is presented on a stainless steel bracelet that is specially designed and constructed for the series. Its thickness, weight and low center of gravity ensure stability and a high level of comfort on the wrist.

Dial
Push buttons
Bracelet

SPEEDTIMER Mechanical Chronograph SRQ043J1

SPECIAL MOVIE

Original model

1969 Speedtimer
The new Speedtimer chronograph takes inspiration from the 1969 Speedtimer, an important landmark in the history of chronograph watchmaking. Applying the technology invented for Seiko's stopwatches, the 1969 Speedtimer was the world's first automatic chronograph with a column wheel and vertical clutch. These two devices made the measurement of elapsed time more precise and error-free than ever before. The new model is to be the signature of the Speedtimer series. It inherits the innovative technology of the original model while achieving further evolution as a time measuring instrument.

1969

SPEEDTIMER

Dial

The blue and red colors inspired by the 1969 Speedtimer are applied so that elapsed time can be read accurately at a glance. The dial has vertical hairline finishing and as the angle of vision changes, the dial turns from navy to vivid blue. Every detail of the watch reflects the high level of precision and performance of the watch as a time measuring instrument. The outer dial ring and sub-dial are in white so they stand out prominently against the blue dial to enhance legibility. The chronograph seconds hand is gently curved by hand for precise time measuring.
Optional Strap

The bracelet can be replaced with a black leather strap whose stitching is designed to increase the strap's durability

Dial
Optional Strap

SPEEDTIMER Mechanical Chronograph SRQ039J1

Photo of SRQ039J1 SPEEDTIMER Mechanical Chronograph

A creation with the same specifications
and in a
blue color joins
the
Speedtimer collection.

Dial

The dial's color is inspired by Seiko's timing and measurement devices used in 1964, when the company was the official timekeeper of the greatest international sporting event held in Tokyo that year.
Strap

The watch is presented on a black crocodile strap with a matte finish. The stitching of the strap is designed to increase the durability.
Push buttons

The large concave pushers ensure the high operability for which the original stopwatch was renowned.

Dial
Strap
Push buttons