Seiko Prospex

Men's Speedtimer Maximum Precision Mechanical Chronograph Watch

The SRQ055J1 celebrates a defining moment in Seiko history, drawing inspiration from the original Speedtimer introduced in 1969. This landmark timepiece was the world’s first automatic chronograph to combine a column wheel and vertical clutch, setting the benchmark for accurately measuring elapsed time and establishing design principles that remain essential in high-functionality chronographs today.

Designed with clarity and performance in mind, the hard-coated bezel features a tachymeter for speed measurement, enhancing its professional tool-watch credentials. Beneath dual-curved sapphire glass, contrasting sub-dials sit against a black dial, using differing finishes to improve legibility while maintaining a refined, technical aesthetic.

At its heart, the SRQ055J1 is powered by Seiko’s in-house 8R48 mechanical chronograph calibre, housed in a 42mm case with a 49.5mm lug-to-lug length. This advanced movement combines a vertical clutch, column wheel and three-pointed hammer to ensure precise chronograph operation, smooth hand engagement and instant, perfectly synchronised resets. As part of the Prospex collection—short for ‘Professional Specifications’—this timepiece is engineered to be practical, reliable and durable, meeting the demanding standards of sports lovers and adventure seekers alike.

If you’re near one of our stores in Coventry or Loughborough, you’re very welcome to collect your online order in person. Simply give our customer service team a call on 0800 977 4391 and we’ll make sure everything is ready for you when you arrive.

If you’re not local, or just short on time, we offer a range of delivery options to suit you. We have partnered with DHL, DPD & Royal Mail, options include free UK delivery services on orders over £75.00, to express delivery options to most destinations worldwide. All delivery options (excluding 2nd class) are fully tracked and insured for your peace of mind.

Read our Delivery Information page (opens in new window) for a list of all delivery options.

We want you to be completely satisfied with your purchase. If for any reason you are not, you may return your order within the periods below for a full refund or exchange; T&C's apply.

Not Wanted, Wrong or Arrived Damaged
30 DAYS

Orders with Optional Insurance
14 DAYS

For full details please visit our Returns & Exchanges page (opens in new window).

We offer professional engraving on a range of items with precision and care. Whether you’re personalising a gift or adding a special message, we can help bring your idea to life.

Please visit our Engraving page for full details (opens in new window).