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Seiko

Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition in ‘tranquil teal’

SPB545J1

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Product Description

In 1965, Seiko created Japan’s first diver’s watch, a groundbreaking timepiece that set a new global benchmark for underwater instruments. This new Prospex Diver’s 300m continues that pioneering legacy while also contributing to marine conservation.

Seiko Prospex supports the future of marine life through its Save the Ocean initiative – a mission to help protect the world’s oceans now and for future generations, and to secure this legacy for divers everywhere.

The vivid ‘tranquil teal’ blue dial evokes the sea, with LumiBrite on the hands and indices ensuring clarity in the darkest depths. Its 40mm case features a super-hard coating for durability and a unidirectional rotating bezel designed for safe diving use.

At its heart lies the in-house 6R55 automatic calibre, delivering a 72-hour power reserve and accuracy of -15/+25 seconds per day. Water resistant to 300m, it is built for professional diving environments.

Prospex is a combination of the words ‘Professional’ and ‘Specifications.’ Seiko Prospex timepieces are designed to be practical, reliable and durable; to meet the high standards required in extreme environments for sports lovers and adventure seekers alike.

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Product Specifications
Gift For / Occasion
Valentine's Day
Gender
Men's Watches
Movement & Power
Automatic Mechanical
Movement Calibre
6R55
Movement Origin
Japanese Movement
Collections
Limited Edition, Dive Watches
Mechanical Power Reserve
up to 72 hours
Type
Gift
Clearance
Sale Items
Features
Anti Magnetic, Date Display, Glowing Hands, Glowing Markers, Rotating Bezel, Sapphire Glass
Strap Material
Stainless Steel
Case Material
Stainless Steel
Case Shape
Circle
Display Type
Analog
Dial Colour
Blue
Strap Colour
Silver
Case Width
40 mm
Case Depth
13 mm
Lug to Lug
46.4 mm
Clasp Type
Folding Clasp
Crown Type
Screw Down
Strap Width
20 mm
Hour Markers
Batons
Water Resistance
More than 200m
Condition
New
Delivery & Returns
Free delivery is available on all UK orders -
For items listed as in stock, your order should be completed before 4:00pm (Monday-Friday) for us to despatch the same day or before 11:30am on Saturday for delivery Monday. Please note that all orders must pass our security policy before they are despatched and we must be able to take payment successfully, if this is not possible we will email or send an SMS with further instructions. For queries and delivery questions please feel free to call us on 01926 298499.
For other items, a delivery estimate will be shown where possible. If we feel we are unable to adhere to the timescale after you place your order we will contact you to make you aware and allow you to change your order if necessary. Items will be sent by your chosen delivery method once they are back in stock. For UK orders paid by card, Apple Pay or Google Pay we do not charge you until we are about to despatch your order; PayPal, Amazon Pay, Klarna, finance and international orders are charged when the order is placed.
Returns Policy

In addition to our 30 day returns policy, all items purchased from 1st October 2026 can now be returned until 15th January 2027, terms apply.

We aim for you to be absolutely delighted with your purchase and therefore offer you 30 days to change your mind on your purchase. You may do this by using the form provided with your order or otherwise. We will provide a refund of all payment received (not including delivery upgrades), usually within 2 working days of receiving your return (it may take a little longer during busy periods or for more complex returns). This will be made to the original payment method. For most payment methods it will take 3-5 working days for this to show on your statement.

Please ensure items from your order are suitable before wearing as we are unable to accept items which have been worn under our returns policy.

Returns are free on all UK orders. For orders under £500, you may generate a free tracked and insured returns label on the Royal Mail website (opens in a new window). You can print this label and send it back at any local Post Office at no cost to yourself. It is also possible to have the label printed at Post Office using the QR code from the confirmation email. Please retain the proof of postage receipt. Unfortunately we are unable to refund return postage for orders under £500 sent back by other methods, so we recommend printing the free postage label provided. For orders from £500 to £2,500, the Royal Mail label does not cover the value of the item, so please send it back by Royal Mail Special Delivery, insured for its full value, and we will reimburse the postage separately (please keep your proof of postage — full details are on your receipt), or contact us and we can arrange a collection. For orders over £2,500, please contact us and we will arrange the return for you. For international returns, you will need to bear the cost of returns postage. Please ensure the watch is returned to us in an unworn, new condition with all the original packaging (manufacturer's manual and guarantee if applicable). Please ensure items from your order are suitable before wearing as we are unable to accept items which have been worn under our returns policy. We reserve the right to make deductions for unnecessary damage caused to the product by yourself.

For UK orders we are also able to offer an exchange to a different product if required, please specify this when returning your product. For international orders, please return the item for a refund and place a new order for the product you would like.

If a fault develops with a watch that is outside of the 30 day returns period or is no longer in a new condition the watch can be returned to the manufacturer under the terms of the guarantee (we are an official UK dealer for all brands on our website) so that they can rectify any issues. For more information please see our returns policy page.

Reviews (8)
Authorised Retailer
First Class Watches USA are Seiko watch retail partners so you can be assured your sparkling new watch will arrive with a stamped manufacturer's warranty, packaging and instructions.
This item is supplied with:
  • Official Seiko guarantee
    fully stamped (where appropriate)
  • Instruction manual
    Please note some brands use online manuals
  • Official Packaging
    Official Seiko packaging
Please note: Outside of the UK, the duration of the manufacturer's guarantee may be different and therefore you may need to return your watch to First Class Watches in order to get the full guarantee.
8
Customer Reviews
5 / 5
Average Rating
5 star (Best) (8)
4 star (0)
3 star (0)
2 star (0)
1 star (Worst) (0)
5 Quality
5 Value
5 Ease of use
5 Style
5
Overall Rating
Customer picture of Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition in ‘tranquil teal’ SPB545J1 I’ve purchased many watches with first class watches and couldn’t be happier . Look forward to dealing with again .

reviewed 14/05/2026

VERIFIED FIRST CLASS CUSTOMER
5 Quality
5 Value
5 Ease of use
5 Style
5
Overall Rating
Customer picture of Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition in ‘tranquil teal’ SPB545J1 Overall really pleased with this, the dial is stunning and the finishing is comparable with much more expensive timepieces. It wears comfortably on my 17mm wrist and the quickset clasp adjustment is surprisingly effective. Only criticism is that it runs a tad fast for a new watch, as new Seikos seem to in my experience, but still within spec. Top marks to FCW as usual for a quick and painless transaction.

reviewed 06/05/2026

VERIFIED FIRST CLASS CUSTOMER
5 Quality
5 Value
5 Ease of use
5 Style
5
Overall Rating
2nd watch purchase from this company and they have been faultless. Great company to do business with. Will be back for more!

reviewed 03/05/2026

VERIFIED FIRST CLASS CUSTOMER
5 Quality
5 Value
5 Ease of use
5 Style
5
Overall Rating
Customer picture of Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition in ‘tranquil teal’ SPB545J1 Awesome service, the watch arrived via Royal Mail the next day, brand new, boxed, warranty card completed. Fantastic price, would highly recommend.

reviewed 28/04/2026

VERIFIED FIRST CLASS CUSTOMER
5 Quality
5 Value
5 Ease of use
5 Style
5
Overall Rating
Customer picture of Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition in ‘tranquil teal’ SPB545J1 Superb & stunning Seiko Dive watch 1960’s reinterpretation beautifully made & finished in every respect + incredibly comfortable & accurate.

Colours are very yacht club marina summer vivid aquamarine like very best of The Med / Tropics perfect for holiday getaway set off in very well finished stainless steel. Lume is great green & white hands are very easy reading against vibrant sunray aquamarine face.

Technically runs incredibly well with an accurate 3 days power reserve & smooth gliding seconds hand. A quality movement housed in quality case & bracelet.

I love this watch & Im very happy with it & superb service from First Class Watches - thank you all

reviewed 14/04/2026

VERIFIED FIRST CLASS CUSTOMER
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