Seastrong Diver 300 Heritage Automatic

SKU: AL-520BY4H6

Rated 5.0 out of 5
Based on 1 review
$2,495.00 AUD

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Alpina's diving watches are brought together in the Seastrong collection, presenting strong and readable features true to the Maison's legacy. Designed to please water sports lovers, these models perpetuate the Brand’s proud tradition established over the last century and can be used at depths up to 300m underwater.

A true pioneer of the Swiss watchmaking industry, Alpina has been the source of numerous patents and innovative calibers. Alpina invented the concept of the Swiss sports watch as we know it today, with the creation of its legendary Alpina 4 in 1938.

Feature Overview


2 Years


Alpina Premium Box

Case Size




Glass Material

Sapphire Crystal



Water Resistance

300 Meters

Band Type

Brown Rubber


Hours, minutes, seconds

Al-520 caliber, automatic
26 jewels, 38-hour power reserve, 28,800 alt/h

Polished stainless steel 2-part case
Diameter of 42 mm
Height of 12,30 mm
Scratch-resistant glass box sapphire crystal
Engraved case back
Water-resistant up to 30atm/300m/1000ft
Screw-in crowns and case back

Black dial with sunray finishing and applied yellow gold-plated indexes
Black internal revolving 60min diver bezel with yellow gold color minutes and seconds graduation
Yellow gold-plated hour, minute and second hands filled with white luminous treatment

Brown calf leather strap
Including an additional black rubber strap



average rating 5.0 out of 5
Based on 1 review
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100% of reviewers would recommend this product to a friend
Review posted
Reviewed by Simon E.
Verified Buyer
Rated 5 out of 5

Great watch

This is a great heritage watch and very comfortable to wear.

Also, I would highly recommend Watch Direct as a dealer to deal with.

I recommend this product
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Shipping & Returns


Free Shipping on all orders within Australia.

Most orders ship within 24 hours.

Same Day Delivery available in Sydney, call us for details.

Signature on Delivery is included on all shipments within Australia.  We ship with AusPost and StarTrack.

DHL Express available on International orders.

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This item is eligible for a return within 30 days of purchase.

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