Seiko Prospex Samurai 43.8mm SRPF03K
4 interest free payments of $198.75
The Seiko Prospex Samurai SRPF03K is a bold and modern diver’s watch that perfectly represents Seiko’s long-standing heritage of precision craftsmanship and innovative design. Beloved by collectors, the “Samurai” nickname comes from its sharply angular case, shaped as though it were carved by a Japanese samurai sword—instantly recognisable and distinctly Seiko.
This model features a striking black 3D press-pattern dial paired with a durable aluminium bezel for scratch resistance and a premium look. Built for adventure, the SRPF03K houses the reliable 4R35 automatic movement with a 41-hour power reserve and offers the professional-grade durability expected from the Prospex line, including 200 m water resistance, a screw‑down crown, unidirectional rotating bezel, and LumiBrite across the hands and markers for unbeatable visibility.
Since creating Japan’s first-ever diver’s watch in 1965, Seiko has continually set industry standards, and this Samurai continues that legacy with rugged stainless‑steel construction, Hardlex crystal, and a secure-lock bracelet with diver’s extension—ensuring comfort and performance whether you're underwater or on land.
What we love about the Seiko Prospex Classic Samurai SRPF03K: The combination of its aggressive Samurai case lines, textured black dial, and ceramic bezel gives this watch a powerful wrist presence that feels uniquely Seiko. It’s a perfect blend of heritage dive-watch design, everyday durability, and modern craftsmanship—making it an ideal choice for enthusiasts who appreciate a tough, stylish, and authentically Japanese timepiece.
Orders are dispatched within 1–3 business days from Sydney via Australia Post Express for fast and reliable delivery. Customers located in Sydney may also enjoy the convenience of same‑day Click & Collect, with orders ready for pickup from our Alexandria showroom just one hour after purchase when this option is selected at checkout.
Every watch is covered by a 3‑year Seiko Australia warranty, providing complete peace of mind. StarBuy is an Authorised Seiko Distributor, and all watches are supplied in genuine Seiko original packaging. Warranties are registered online directly with Seiko, and following dispatch, Seiko will email you confirmation of your warranty registration along with a link to the online instruction manual. In line with Seiko’s current sustainability practices, printed warranty booklets and manuals are no longer supplied.
Specification
Case
- Case Diameter (mm) 43.5mm
- Case Thickness (mm) 13.4mm
- Lug-to-Lug (mm) 48.7mm
- Lug Width (mm) 22mm
- Case Material Stainless Steel
- Case Shape Round
- Case Back Type Solid Case Back
- Glass Type Hardlex
- Water Resistance (m) 200
- Bezel Material Aluminium
- Bezel Type Unidirectional
Bracelet / Strap
- Material Stainless Steel
- Type Bracelet
- Interchangeable? Yes
- Clasp Deployment Clasp
- Clasp Type Push Button
Dial
- Colour Black
- Calendar Date
- Finish Waffle Dial
- Indices Type Batons
Delivery
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How and when will my StarBuy order be shipped?
We ship all orders via Australia Post Express for fast and reliable delivery. We aim to dispatch every order as quickly as possible—typically within 1–3 business days. You'll receive a confirmation email with tracking details as soon as your order ships. -
Can StarBuy guarantee delivery dates?
While Australia Post Express is generally reliable, their delivery dates are estimates only and may vary, especially during busy periods. We appreciate your understanding if your parcel takes a little longer to arrive. -
Will I need to sign for my order?
Yes, a signature is required upon delivery. If no one is home, we recommend using a work address. Australia Post may offer contactless delivery—in those cases, we follow their current safety protocols. Risk and ownership transfer to the recipient upon delivery. -
What if I am not home when my order arrives?
If no one is available to sign, Australia Post will leave a card with details on how to collect your parcel from the closest authorised Australia Post Office. You’ll need to present a photo ID at the post office to pick it up. If you’ve authorised a Safe Drop with Australia Post previously, they’ll follow your existing instructions. -
Will I get a Shipping Notification?
Absolutely! As soon as your order is on its way, you’ll receive an email with tracking details. We kindly ask for your patience—tracking updates may take up to 3 business days after ordering. -
What are your shipping charges?
We offer free shipping Australia-wide with Australia Post Express. For approved brands shipped to New Zealand, a $10 flat fee will be added to your total at checkout. Approved parcels to NZ are shipped within the Australia Post / NZ Post network. -
Click & Collect?
Prefer a quicker pick-up? Our Click & Collect service makes it easy.
Pickup Location:
StarBuy
Suite 23, 112 McEvoy Street
Alexandria NSW 2015Hours:
Monday–Friday: 10am–5pm
Saturday: 9am–12pmHow it works - Your order will be ready for pickup within an hour during business hours (unless otherwise notified). If someone else is collecting on your behalf, just email us their name—they’ll need to show ID at pickup.
FAQ
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Are all items in stock?
StarBuy products for sale on the website are always live and accurate. All items marked ‘In Stock’ are physically in stock with us. Items marked ‘Out of Stock’ are completely sold out. In rare instances where additional items are ordered and the items are being shipped to StarBuy, a specific note will be made on the product page.
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How can I be sure your products are authentic?
We guarantee that all of the products we sell on StarBuy- Are brand new
- Are 100% genuine - manufactured by the named brands, in keeping with their high quality standards.
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Is a tax invoice included with my order?
All orders have an automated invoice emailed to the email address on the order. All items listed on our website are GST inclusive. The invoice clearly shows the GST charged on the purchase as well as our name and ABN number.
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Can an item be reserved or put on hold?
Unfortunately due to the model adopted by StarBuy, we are unable to reserve or put an item on hold. Items on sale are limited in quantity and often sell out quickly.
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Why are StarBuy prices low?
StarBuy is a low cost discount website that buys items in bulk and offers them at the lowest possible prices. We keep our costs low by automating most back office processes to keep our prices world competitive. We ensure that you benefit by buying quality brands at low prices from StarBuy and come back to save money again and again.
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Specifications
- Case Diameter (mm) 43.5mm
- Case Thickness (mm) 13.4mm
- Lug-to-Lug (mm) 48.7mm
- Lug Width (mm) 22mm
- Case Material Stainless Steel
- Case Shape Round
- Case Back Type Solid Case Back
- Glass Type Hardlex
- Water Resistance (m) 200
- Bezel Material Aluminium
- Bezel Type Unidirectional
- Material Stainless Steel
- Type Bracelet
- Interchangeable? Yes
- Clasp Deployment Clasp
- Clasp Type Push Button
- Colour Black
- Calendar Date
- Finish Waffle Dial
- Indices Type Batons
- Type Automatic
- In House? Seiko In House Movement
- Calibre 4R35
- Beat Rate (vph) 21600 vph
- Jewels 23
- Movement Hacking? Yes
- Hand Winding? Yes
- Self Winding? Yes
- Power Reserve (days) 1.71 days
- Accuracy +45 / -35 Seconds
- Reference SRPF03K
- GTIN 4954628237224
- Display Analog
- Gender Male
- Age Group Adults
- Weight (g) 200g (Approximate)
- Shipping Period 1-3 Business Days - Sydney
- Brand Seiko
- Authorised Dealer Yes
- Warranty Period Seiko 3 Year
- Warranty Registration Online by Starbuy
- Warranty Provider Seiko Australia
- Packaging Seiko Official Packaging
- Manual Seiko Online
- Service Centre Seiko - Sydney
Reviews
Need help?
Frequently Asked Questions
Is the Seiko Samurai a good dive watch? Why is it called the Samurai?
The nickname comes from the community, not Seiko — collectors christened it for the sword-shaped hands and the sharp, angular case, all flat planes and hard edges where most dive watches are round and soft. It's earned its reputation: a genuine 200-metre diver's rating built to ISO dive standards, a screw-down crown, a solid steel bracelet and Seiko's in-house automatic movement, at a price where most brands are selling you fashion watches. At 43.8mm it has real wrist presence, but the angular case keeps the lug-to-lug at 48.4mm, so it wears more manageably than the diameter suggests. If you want one tough automatic diver that looks like nothing else at the price, the Samurai has been the answer for years — the black dial version is the most versatile of the lot.
What's the difference between the Samurai and the King Samurai?
Same case, same movement family, same 200m dive rating — the King Samurai adds two upgrades: a sapphire crystal instead of the Samurai's Hardlex mineral glass, and a ceramic bezel insert instead of aluminium, both more scratch-resistant. That's it, and it's why the King costs more. Whether it's worth the difference depends on how you'll treat the watch. Hardlex is Seiko's own hardened mineral crystal and it's tougher than standard mineral glass — plenty of divers have worn Hardlex Seikos hard for decades — but sapphire is harder to scratch, full stop. If the watch is going on and off desks and door frames daily, the King's upgrades earn their keep; if you want the classic Samurai at the sharpest price, the standard model like this one gives you the identical wearing experience and the identical movement performance.
Is the SRPF03K automatic? What movement does it use?
Yes — it runs Seiko's Calibre 4R35, a 23-jewel automatic that winds itself from the motion of your wrist. No battery, no charger. It hand-winds from the screw-down crown when it's been sitting, has hacking seconds so you can set the time to the second, and holds a power reserve of about 41 hours — enough to keep running overnight and through a lazy day off the wrist. The 4R35 is the date-only sibling of Seiko's famously robust 4R36, part of a movement family with a long service record and parts available at any competent watchmaker worldwide. It's a workhorse, which is the point: this is a watch built to be worn in salt water, not babied.