The Seiko Prospex Sumo “Sand Bank” Asia‑Pacific Limited Edition SPB539j is a stunning tribute to Seiko’s longstanding heritage of craftsmanship, innovation, and nature‑inspired design. Produced in a strictly limited run of 1,700 pieces and Made in Japan, this exclusive Prospex Sea model captures the tranquil beauty of the Maldives’ shifting sandbanks—where turquoise waters and golden shores meet in a mesmerising gradient of colour.

Its white‑to‑aqua dial echoes this serene transformation, embodying the peaceful horizons of island landscapes while maintaining the rugged reliability that Seiko divers are celebrated for. The bold 45mm stainless‑steel case, enhanced with an aqua ceramic bezel insert, reinforces the Sumo's iconic presence, making it both visually striking and unmistakably part of Seiko’s professional‑grade dive lineage.

Powered by the dependable 6R35 automatic movement with an impressive 70‑hour power reserve, the “Sand Bank” Limited Edition balances mechanical performance with modern durability. Its 200m water resistance, sapphire crystal, and comfortable white silicone strap make it a versatile companion above and below the surface.

As part of the exclusive Asia‑Pacific release, each watch is individually numbered and presented in a the classic Seiko white Prospex box, reinforcing Seiko’s deep connection to natural beauty and its legacy of creating timepieces that fuse form, function, and storytelling.

What we love about the Seiko Prospex Sumo “Sand Bank” Asia‑Pacific Limited Edition is how perfectly it blends Seiko’s iconic design heritage with a refreshing, nature‑inspired aesthetic. The gradient dial is not only visually captivating but genuinely unique among limited Prospex editions, while the robust 6R35 movement and signature Sumo case architecture ensure it remains a true diver at heart. With its limited availability, thoughtful detailing, and island‑inspired charm, this special edition is a standout collectible that embodies everything we admire about Seiko’s dedication to quality, creativity, and lasting design.

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.