







Seiko 5 Automatic Black Dial Steel Strap Men's Watch SNK375K1
Official UK Authorised Retailer
3 Year Manufacturer Warranty
Free Delivery
30 Day Returns
Customer Service & Technical Support
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The Seiko 5 Automatic SNK375K1 makes an immediate impression with its classic black dial contrasted against a 37mm polished stainless-steel case and matching bracelet, striking a balanced profile that suits both everyday wear and smart-casual outfits. Applied silver-tone hands and indices, some treated with luminous material ensure clear legibility at a glance, while a combined day-and-date display at 3 o’clock adds practical daily utility without cluttering the dial’s purposeful yet understated layout. A scratch-resistant Hardlex crystal protects the face against daily wear.
Part of Seiko’s revered Seiko 5 series, this model encapsulates the brand’s heritage of reliable automatic watchmaking, pairing timeless design with robust mechanics that perform without the need for a battery. Its versatile aesthetic makes it equally at home in office settings, casual weekends or as a tasteful introduction to mechanical timepieces.
Trusted Automatic Movement
At its heart is the Seiko Calibre 7S26 automatic movement a self-winding mechanism with 21 jewels and an approximate 40-hour power reserve, offering dependable mechanical timekeeping that keeps pace with daily life.
Robust Build & Everyday Water Resistance
Crafted from stainless steel with a fixed bezel and robust construction, this watch stands up to everyday wear. It offers water resistance up to 30 metres (3 ATM), making it suitable for incidental splashes and rain but not for swimming or prolonged immersion.
Comfortable Bracelet & Wearability
The integrated stainless-steel bracelet secures with a deployant clasp and push-button release for confident all-day wear. Its coordinated finish complements the case’s design, delivering a cohesive and refined profile.
A Timeless Everyday Automatic
The Seiko 5 SNK375K1 is an engaging choice for those who appreciate expressive mechanical design backed by practical performance. Its balanced dial, dependable automatic movement and versatile styling make it suitable for everyday wear, office attire or as a distinguished addition to a classic watch collection.
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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.

