Seiko 5 Sports GMT 39.4mm SSK025K

The Seiko 5 Sports Field Series Mechanical GMT SSK025K is a modern expression of Seiko’s long‑standing heritage of durability, reliability, and purposeful design. Inspired by traditional military “trench watches”, the Seiko 5 Sports Field collection was created for life “in the field,” where toughness, legibility, and dependable performance matter most. 

The SSK025K ‘Deception’ Field GMT elevates the classic field watch concept with enhanced functionality, featuring a bold black dial and black 24‑hour bezel paired with a highly visible orange GMT hand for tracking a second time zone at a glance. Designed for international travel and everyday practicality, the GMT function allows quick and intuitive multi‑time‑zone reading without compromising the watch’s clean, military‑inspired aesthetic. Staying true to the original field watch proportions, the 39.4mm stainless steel case with hard coating maintains a perfectly balanced, wear‑anywhere profile, while the curved Hardlex crystal adds durability and clarity. A black calfskin leather strap reinforces the rugged yet understated character of the watch, offering comfort and versatility from daily wear to outdoor use.

At the heart of this Seiko field watch is the trusted Seiko Calibre 4R34 automatic movement, delivering a 41‑hour power reserve and the mechanical reliability Seiko is renowned for. LumiBrite‑coated hands and indexes ensure excellent readability in low‑light conditions, while features such as 10‑bar water resistance, a screw‑down exhibition case back, stop‑seconds function, and strong magnetic resistance highlight the watch’s practical tool‑watch credentials. As with every model in the Seiko 5 Sports family, this watch proudly upholds the five core principles that define the collection: automatic movement, day‑date functionality, water resistance, a recessed crown, and a durable case construction.

What we love about the Seiko 5 Sports Field SSK025K is its perfect balance of heritage and modern functionality. It captures the honest, no‑nonsense spirit of a traditional field watch while adding a genuinely useful GMT complication. Compact, robust, and unmistakably Seiko, it’s a watch built to be worn daily, trusted in any environment, and appreciated for its understated character and mechanical integrity.

Orders are dispatched within 1–3 business days from Sydney via Australia Post Express for fast and reliable delivery. Customers located in Sydney may also enjoy the convenience of same‑day Click & Collect, with orders ready for pickup from our Alexandria showroom just one hour after purchase when this option is selected at checkout.

Every watch is covered by a 3‑year Seiko Australia warranty, providing complete peace of mind. StarBuy is an Authorised Seiko Distributor, and all watches are supplied in genuine Seiko original packaging. Warranties are registered online directly with Seiko, and following dispatch, Seiko will email you confirmation of your warranty registration along with a link to the online instruction manual. In line with Seiko’s current sustainability practices, printed warranty booklets and manuals are no longer supplied.