Seiko Astron

Silvery Grey GPS Solar Dual-Time Chronograph Watch

The Seiko Astron SSH177J1 is born from Seiko’s passion for innovation and developed under the design theme of Solidity, representing the next step in advanced watchmaking. This solar-powered Astron model combines cutting-edge technology with a refined, contemporary aesthetic designed for the future.

Lightweight yet striking, the watch is crafted from super-hard coated titanium for both the case and bracelet, and is protected by dual curved sapphire crystal glass. The silvery grey dial features a vertical subdial layout with a horizontal line pattern, giving the watch a modern, technical appearance. Its sleek lines, slim profile and compact, angular design create an almost seamless flow from the case through the lugs to the bracelet.

Designed with a low centre of gravity for enhanced comfort on the wrist, the five-piece titanium bracelet offers lightweight wear and includes a micro-adjustable clasp for a personalised fit. The caseback is finished with a three-dimensional globe symbol, highlighting its GPS capability. Powered by the in-house 5X83 solar movement, the SSH177J1 features a 1/20th of a second chronograph, with dedicated subdials for chronograph timing, mode selection and a dual-time display. As part of the Seiko Astron collection — the world’s first GPS solar watch — it is powered by light and automatically adjusts to the exact time using advanced satellite technology.

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).