






Seiko 5 Automatic Black Dial Stainless Steel Strap Men's Watch SNKK31K1
Official UK Authorised Retailer
3 Year Manufacturer Warranty
Free Delivery
30 Day Returns
Customer Service & Technical Support
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The Seiko 5 SNKK31K1 is a classic automatic wristwatch that delivers timeless design and dependable mechanical performance, making it a versatile choice for everyday wear. It features a polished 38 mm stainless‑steel case paired with a matching bracelet, offering a refined yet understated silhouette that transitions effortlessly between business, casual and formal attire. At its centre lies a black dial with a subtle sunburst pattern that enhances depth and visual appeal, while luminous hands and baton markers ensure clear legibility in all lighting conditions.
Heritage Meets Everyday Functionality
Part of Seiko’s iconic Seiko 5 line, the SNKK31K1 embodies the collection’s five key attributes: automatic movement, day‑date display, water resistance, recessed crown and durable construction that have defined accessible mechanical watchmaking for decades. The day and date window at 3 o’clock adds everyday practicality without compromising the dial’s clean and balanced look.
Reliable Automatic Movement
Powered by Seiko’s trusted Calibre 7S26 automatic movement, the SNKK31K1 winds itself through the natural motion of the wearer’s wrist, eliminating the need for a battery. With an approximate 40‑hour power reserve, this dependable movement supports consistent timekeeping and showcases the craftsmanship behind Seiko’s enduring mechanical heritage.
Durable Construction & Comfort
The robust stainless‑steel case and bracelet are paired with a Hardlex crystal, a Seiko‑proprietary mineral glass designed to resist scratches and everyday wear. The exhibition case back reveals the intricate automatic movement in action a feature that appeals to enthusiasts and casual wearers alike. With water resistance rated at 30 metres (3 ATM), the watch handles splashes and light rain with ease, making it suitable for routine daily use.
Everyday Versatility & Classic Style
The Seiko 5 SNKK31K1 blends classic styling with reliable functionality, creating a watch that is both practical and stylish. Its balanced proportions, detailed black dial and mechanical heritage make it an excellent choice for those seeking a timeless automatic watch that works as seamlessly with smart tailoring as it does with casual weekend wear.
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UK Delivery
| Selling Price | Royal Mail 48 (Tracked) |
Royal Mail 24 (Tracked & Signed) |
Special Delivery Next Day (Mon – Fri) |
Special Sunday Delivery (Before Sat 12pm) |
Royal Mail Special Delivery by 1pm |
|---|---|---|---|---|---|
| £0 to £99.99 | FREE | £4.99 | £7.99 | £7.99 | £9.99 |
| £100 to £499.99 | N/A | FREE | £7.99 | £7.99 | £9.99 |
| £500 or more | N/A | N/A | FREE | £7.99 | £9.99 |
We know your order is important to you, so we use Royal Mail’s tracked delivery service on all UK orders.
We also offer Royal Mail Special Delivery service, which for an additional fee offers guaranteed delivery the next day before 1pm.
*Royal Mail Tracked 24 and Royal Mail Tracked 48 services are 98% accurate but not guaranteed.
Orders placed before 5pm (Monday–Friday) are dispatched the same day. Orders placed on Saturday or Sunday are dispatched the following Monday.
International Shipping & Duties (Delivered At Place – DAP)
We’re pleased to offer worldwide delivery with fully tracked and insured shipping.
How international orders work
All international orders are shipped on DAP (Delivered At Place) terms. This means:
- The price you pay at checkout covers your goods and international shipping only.
- WatchNation does not collect or charge any overseas sales tax, import VAT, or customs tariffs (duties).
- When your order reaches your country, local customs authorities may apply:
- Import VAT (value-added tax),
- Tariffs or customs duties (import taxes based on product category and value), and
- Handling or clearance fees from the courier.
These charges are set by your country’s customs authority and are payable by you before delivery.
You’ll be contacted directly by DHL with a secure link to pay any applicable charges. Once cleared, your parcel will be released and delivered promptly.
Estimated delivery times (after dispatch)
- European Union: approximately 2–5 working days
- Rest of World: approximately 5–7 working days
Customs processing times vary by country and may extend delivery slightly.
If import charges, tariffs, or duties are not paid
If local charges are unpaid or delivery is refused, the shipment will be returned to us. In this case, we will refund your order minus the outbound shipping cost and any return or customs fees billed to us by the carrier.
Estimating import costs
Import VAT and duty rates vary by country. You can check estimated import taxes and tariffs by contacting your local customs authority or using your government’s online import calculator.
More about delivery...

Need help?
Frequently Asked Questions
Yes — we are an Authorised Dealer for every brand we sell. All watches come with an official box, papers, and a full manufacturer’s warranty.
Every watch includes a manufacturer warranty. You’ll find more warranty info listed in the product description.
Orders placed before 5pm (Mon–Fri) are dispatched the same day. Order before 12pm on Sat for same-day dispatch. Free UK delivery is available on all orders, and tracking details are provided once shipped.
Yes — you have 30 days from delivery to return or exchange your item, provided it’s unused and in its original packaging.

