Pre-order - This model is expected to ship in May 2026

The Seiko Prospex GMT HBC001J1 is spectacular GMT watch that is sure to stand out and offers some great improvements over its predecessor: even more water resistance and the latest generation clasp.

With it's 42mm diameter case (excluding crown) and 13.3mm thickness the HBC001J1 is suitable for most wrists. Of course the watch is water resistant to 300m and the beautiful dial is protected by a sapphire crystal. The movement powering all this is the Seiko Cal. 6R54 GMT movement, which has an incredible 72 hour power reserve, a full three days! The clasp is also equipped with a tool-free quick adjustment feature, in steps of 2.5mm for a total of 15mm, allowing for the most comfortable fit at all times.

This watch simply does it all, take it diving while tracking a second time zone and do it all while looking amazing!

• Serious Service
• Warranty
• About Seiko

• *Authorised dealer of Seiko watches
  *100% brand new and unworn
  *Complete with the beautiful box and stamped warranty booklet
  *Free worldwide shipping with DHL, FedEx and UPS
  *Tens of thousands of satisfied customers

• We're an authorised dealer of all of our brands, unless otherwise noted. In this day and age there are also many 'grey market dealers' that compromise. What are the main benefits of buying from an authorised dealer with regard to the warranty?

  3 year warranty

  Seiko watches come with a 3 year warranty. This covers all mechanical malfunction arising from parts failure and/or assembly errors. Excluded are parts that by their nature may not last 3 years, like batteries and leather straps, damage/problems caused by improper use and wear and tear. We stand behind the brands that we sell and the quality that they offer.
  Some of our brands also offer an international warranty, which will also apply.

  Service and parts

  In the unfortunate event of a problem with your watch, you simply need to send it to us (or take it to another dealer if the brand offers an international warranty). We have access to the official service centers, where only original parts are used and the watchmakers are qualified and experienced with your type of watch. Not every watch movement is the same, so it's best if it's handled by people who know what they are doing.
  After your 2 years warranty has expired we are able to offer service in most cases.

• Read all about Seiko on our dedicated brand page.