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Seiko Prospex PADI King Sumo Diver Watch
SPB325J1
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Product Description
This watch shape is affectionately named ‘Sumo’ by Seiko fans because of its size and shape and the 12 o’clock marker – it’s a substantially strong looking timepiece.
This latest design has been upgraded with new modern features, including a ceramic bezel and super hard coating on the case and bracelet for durability.
This watch features a silicone strap, while the dial features a fine pressed pattern dial.
The accordion-style silicone strap combines 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.
The PADI timepiece collection is exclusive to Seiko, as the only global watch brand to design a range of professional diver’s watches in official colours featuring the PADI logo. PADI (The Professional Association of Diving Instructors) is the world’s leading scuba diving training organisation, unifying divers around the globe who share a passion for adventure and love for the ocean.
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.
Since launching Japan’s first diver’s watch in 1965, Seiko’s innovative watchmaking has changed global dive watch standards.
Model Specification: SPB325J1
- A stainless steel case measures 45 mm in diameter.
- Securing the bracelet is a blue silicone strap.
- The watch features a black bezel that is unidirectional.
- An anti-reflective sapphire crystal protects the black dial.
- The large hands and hour-markers are luminescent.
- Water-resistant to 200 metres or 20 bars.
- Features on the model include a screw-down crown, a date display and a stop-seconds hand function.
- Movement type - Automatic. The watch is accurate up to +25 to -15 seconds per day
- Calibre - 6R35
Product Specifications
- Gift For / Occasion
- Valentine's Day
- Gender
- Men's Watches
- Movement & Power
- Automatic Mechanical
- Movement Calibre
- 6R35
- Collections
- Luxury Watches, Dive Watches
- Mechanical Power Reserve
- up to 70 hours
- Clearance
- Sale Items
- Features
- Ceramic Bezel, Date Display, Glowing Hands, Glowing Markers, Sapphire Glass
- Strap Material
- Silicone
- Case Material
- Stainless Steel
- Case Shape
- Circle
- Display Type
- Analog
- Dial Colour
- Black
- Strap Colour
- Blue
- Case Width
- 45 mm
- Case Depth
- 13.35 mm
- Hour Markers
- Dots, Batons
- Water Resistance
- 200 metres
Delivery & Returns
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.
Written by:Liam
reviewed 29/04/2025
Seiko Prospex PADI King Sumo Diver Watch SPB325J1 (SPB325J1)This is a very nice watch for the money (mine was half price, but not expensive at RRP, in my view). It is a fairly large watch but it does not look or feel big on my 165mm wrist. Perhaps this is because I like large watches, however, this one does not extend beyond the width of my wrist (the uploaded image is misleading in this respect). As regards the design, it is a conventional diver’s watch with the PADI black globe face design and ceramic dial with blue accents. I like it! The supplied rubber strap is of good quality but is too long on my wrist (probably fine on a wetsuit). As a result, I purchased a bracelet from Uncle Seiko and this works well. It is keeping decent time at +8 seconds per day.
Written by:Nicholas Scotchmer
reviewed 12/03/2025
Superb at answering any queries and very competitive on pricing
My go to watch store
Well done
Written by:Warren J Clegg
reviewed 25/12/2022
