Seiko Tuna 43.2mm SRPH77K

Seiko Prospex Antarctica Tuna 'Save the Ocean' Mens Automatic movement watch SRPH77K. Case size 43.2mm.

The SRPH77K1 timepiece is inspired by the landscape of the world’s largest marine sanctuary – Antarctica. The dial’s colour and texture of the SRPH77K echo the views underwater of penguins swimming on the surface, whilst the penguin silhouette at the 10 o’clock position represents the dwindling numbers of its inhabitants.

The shape of this watch is affectionately nicknamed by Seiko fans as a ‘Tuna’ – because of its larger diameter and bold shape like a tuna tin – loved for decades since its release.

This version of the Seiko Save the Ocean Tuna can SRPH77K features a 4R35 automatic calibre with a power reserve of 41 hours. The movement has a daily time tolerance of +35 / -45 seconds.

The Seiko Tuna SRPH77K Prospex is an Automatic movement watch that is powered by the movement of the wearer and it features a water resistance rating of 200m. The SRPH77K features a blue textured dial with a stainless steel case and matching blue soft silicone strap. The glass used is Hardlex.

What we love: The finish and the overall look of the SRPH77 is simply classic. Seiko Prospex watches are designed for sports lovers and adventure seekers in the water, in the sky or on land – and are robust for everyday wear, whatever the environment. Since launching Japan’s first diver’s watch in 1965, Seiko’s innovative watchmaking has changed global dive watch standards.

Ships in 1-3 Business Days from Sydney with Australia Post Express. Sydney customers can pick up on the same day from our Alexandria showroom an hour after placing the order by choosing Click & Collect as the delivery option.

3 Year warranty from Seiko (Australia). StarBuy are Authorised distributors of Seiko Watches. All Seiko Watches are shipped in Seiko original packaging. All Seiko warranties are registered online directly by Seiko. After purchase and shipping by StarBuy, an email is sent by Seiko registering the warranty. A link to the online instructions manual is also sent within the email. Seiko no longer supply any hard copies of the warranty booklet or the instructions manual.

• 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.
  

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  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.
  

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  Pickup Location:
  StarBuy
  Suite 23, 112 McEvoy Street
  Alexandria NSW 2015 

  Hours:
  Monday–Friday: 10am–5pm
  Saturday: 9am–12pm  

  How 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.

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  1. Are brand new
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  The only thing that’s different are the low prices.
  
  

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