Ever since it was created in 1968, the Seiko 5 Sports collection of mechanical watches has been synonymous with durability and reliability. Today the collection takes another step forward with, for the first time, the introduction of a GMT caliber. Based on the tried and trusted platform of Seiko’s 4R series calibre, this new Sport reference offers the added convenience of a quick-adjust second time zone display in a stainless steel case that’s only a whisper 0.1 mm thicker than the three-hand Seiko 5 diver.

To maximize legibility, the GMT hand is brightly colored, and finished with a generous layer of Lumibrite to ensure legibility in low light conditions — just like the hour, minute, and seconds hands. In addition to the international convenience of the GMT function, this watch also features a bi-color rotating bezel to separate the night and day hours at a glance. The bezel’s ring indicator is made of Seiko’s Hardlex glass to deliver the high level of durability for which the Seiko 5 Sports collection is renowned.

The design of the case and dial draws inspiration from one of Seiko’s best-loved sports watches, known to enthusiasts as the Seiko SKX series. The five-row bracelet is a new design also inspired by the original SKX series in which the middle rows are polished to create a contrast with the solid feel of the rows that bind them.