Alpina Seastrong Heritage 42mm AL-520GR4H6

The Alpina Heritage Diver 300m Men’s Watch AL-520GR4H6 is a bold Swiss automatic diving watch designed for the modern man who values heritage, strength and precision. Inspired by Alpina’s long-standing connection to the Swiss mountains and its tradition of high-quality watch manufacturing, this timepiece combines rugged performance with vintage dive-watch character.

The 42mm stainless steel case is water resistant to 300 metres, making it a dependable choice for diving, water sports and everyday adventure, while the green sunray dial and internal diving bezel capture the spirit of underwater exploration. Finished with a sporty green rubber strap, this Alpina men’s watch delivers a confident, masculine look with genuine Swiss craftsmanship at its core.

Powered by the AL-520 automatic movement, based on the SW200 calibre, the Alpina Heritage Diver 300m offers reliable mechanical performance with a 38-hour power reserve, 26 jewels and a frequency of 28,800 vibrations per hour. The watch features hours, minutes and seconds functions, with applied silver indexes and luminescent hands for excellent readability in low-light conditions.

A scratch-resistant box sapphire crystal, screw-down crown and engraved Seastrong caseback highlight Alpina’s attention to detail, durability and technical expertise. Blending mountain-born resilience with professional dive-watch functionality, this Alpina automatic watch is a refined tribute to adventure on land and beneath the sea.

What we love about the Alpina Heritage Diver 300m Men’s Watch AL-520GR4H6 is its strong mix of vintage diving style, Swiss automatic precision and everyday versatility. The green sunray dial and matching rubber strap give it a distinctive, sporty presence, while the 300-metre water resistance and Alpina heritage make it a high-quality men’s watch built for confidence, performance and exploration.

Ships in 1-3 Business Days from Sydney with Aus 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.

2 year Australian warranty from Alpina. StarBuy are Authorised online stockists of Alpina Swiss Watches. All Alpina Watches are shipped with a manufacturers warranty and in Alpina official packaging.

• 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 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.

• 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.
  
  

• How can I be sure your products are authentic?

  We guarantee that all of the products we sell on StarBuy

  1. Are brand new
  2. Are 100% genuine - manufactured by the named brands, in keeping with their high quality standards.

  The only thing that’s different are the low prices.
  
  

• 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.
  
  

• 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.
  
  

• 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.