





Seiko Prospex Limited Edition 1975 'Tuna' Automatic Blue Dial Silicone Strap Men's Watch SLA041J1 (Damaged Box)
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Seiko Prospex Limited Edition 1975 'Tuna' Automatic Blue Dial Blue Silicone Strap Men’s Watch SLA041J1
Please note this watch is being sold with a damaged box. Please view the listing images for a photo of the actual box.
The Case:
The Dial:
The dial is stylised in a blue coloration and it consists of an uncomplicated layout to allow for maximum readability. The watch appeals to the conventional, understated aesthetics of the tool watch through the adoption of bold circualr indices and an equally bold handset. Both of which have been filled with a luminescent material, which allows the dial to be read in the dark. Additionally a subtle date window replaces the 3 o'clock marker. The chapter ring displays the seconds in standard line markers, again a simple yet effective style.
The Strap:
The blue accordion-style silicone strap combines high durability and comfort – a strap design invented by Seiko in 1975 as a practical solution to the expansion and contraction of a diver’s wrist at different depths. A standard buckle can then be easily fastened to sit comfortably around your wrist.
The Functions:
This timepiece is powered by Seiko's 8L35 calibre movement that is based on the Grand Seiko caliber 9S55 movement. It offers a 50-hour power reserve and an accuracy +15 to -10 seconds per day. It is made up of 26 jewels and it beats at 28,800 BPH. This high grade calibre movement is hand assembled and adjusted by Seiko’s master watchmakers at the Shizukuishi Watch Studio in Morioka. It features a hacking function which allows the wearer to accurately set the time when the crown is pulled out. Finally, the watch has a water resistance of 1000 metres, suitable for saturation diving.
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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.
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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 14 days from delivery to return or exchange your item, provided it’s unused and in its original packaging.

