Seiko Prospex SPB481J1 — Automatic Diver's Watch

The Seiko Prospex SPB481J1 is a professional automatic diver's watch powered by the in-house 6R55 calibre — and the most distinctive of the three variants in the SPB48x 300M lineup. The cream dial sets it apart immediately: where the black SPB485J1 is understated and the blue SPB483J1 is ocean-connected, the cream dial gives the SPB481J1 a warm, vintage-inflected character that no other current Seiko 300M diver shares. It is a tool watch that looks like a collector's watch, without sacrificing any of the specification that earns the Diver's 300M rating.

The 6R55 calibre delivers a 72-hour power reserve and accuracy of +25/-15 seconds per day. The 41.3mm stainless steel case with screw-down crown and unidirectional rotating bezel meets the full Diver's 300M specification, and the sapphire crystal keeps the cream dial protected through active daily use. Lumibrite on the hands and hour markers ensures readability in low light and underwater. The 12.5mm slim profile and stainless steel bracelet complete a well-resolved package built for both the dive and the everyday.

Key Features

• Seiko 6R55 automatic movement with manual winding — self-winding with the convenience of hand-winding when needed
• Approx. 72-hour (3-day) power reserve — reliable performance through a long weekend without wearing
• Accuracy: +25/-15 seconds per day — dependable automatic timekeeping
• Diver's 300M water resistance — built to ISO professional diving standards
• Cream dial with baton markers — warm, vintage-inflected character that sets this variant apart in the 300M lineup
• Lumibrite on hands and hour markers — superior legibility in low light and underwater conditions
• Unidirectional rotating bezel — purpose-built for safe and accurate dive timing
• Sapphire crystal — premium scratch resistance and superior optical clarity
• 41.3mm stainless steel case — professional dive watch proportions at 12.5mm slim profile
• Screw-down crown — water integrity protection for diving use
• Date display — everyday practicality built in
• Stainless steel bracelet — durable, comfortable, and corrosion-resistant

Why You'll Love It

The SPB481J1 is the Seiko Prospex 300M diver for the buyer who wants to stand out from the field. Cream dials on professional dive watches are rare — the category overwhelmingly favours black and blue, and with good reason. But the SPB481J1 makes a compelling case for the alternative: the cream dial reads clearly underwater under Lumibrite illumination, it creates a warmth and vintage depth on the wrist that the darker siblings cannot replicate, and it transitions into smart-casual and formal wear more gracefully than any black or blue diver's watch. The 6R55 platform delivers the same 300M capability, 72-hour reserve, and Diver's rating as the rest of the family. The difference is entirely in what you choose to look at on your wrist.

SPB481J1 vs SPB483J1 vs SPB485J1 — Cream, Blue, or Black?

All three models share identical specifications — the same 6R55 calibre, 41.3mm case, 12.5mm depth, Diver's 300M water resistance, sapphire crystal, screw-down crown, unidirectional bezel, Lumibrite, date display, and 72-hour power reserve. The difference is entirely in the dial colour. The SPB481J1 has a cream dial — warm, distinctive, and the rarest colour choice in the professional dive watch category. The SPB483J1 has a blue dial — the most ocean-connected and classically diver-coded. The SPB485J1 has a black dial — the cleanest and most universally wearable. Same Diver's 300M specification, three completely different personalities. Choose the colour that speaks to you.

The Seiko Prospex Story

Prospex is a combination of the words "Professional" and "Specifications." Seiko Prospex timepieces are designed to be practical, reliable, and durable — built to meet the high standards required in extreme environments for sports lovers and adventure seekers alike. The story begins in 1881, when Kintaro Hattori founded a clock and watch shop in Ginza, Tokyo — the business that would become the Seiko of today. Since 1965, when Seiko created Japan's first diver's watch, the Prospex dive line has stood for underwater precision and reliability. The SPB481J1 carries that sixty-year legacy forward in its most distinctive expression — a 300M diver's watch that earns its place through both performance and character.

Backed by Seiko's official warranty. Authentic Seiko Prospex watch, sold by authorised retailer City Chain Singapore.

Also available in blue dial — SPB483J1 and black dial — SPB485J1. Explore the full Seiko Prospex Collection or browse all Seiko watches at City Chain Singapore.