Seiko Prospex Antarctica Tuna ‘Save The Ocean’ Blue Dial Navy Blue Silicone Strap Men’s Watch SRPH77K1 

This timepiece is inspired by the landscape of the world’s largest marine sanctuary – Antarctica. The dial’s graduated color and texture echo the white-blue views of the area created by light reflected on the ice, whilst the penguin footprints at the 10 o’clock position represent the dwindling numbers of its inhabitants.Seiko donates proceeds from these ‘Save the Ocean’ models to sea conservation and environmental organizations.

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.

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.

The Case:

With a case crafted from stainless steel, the Seiko Prospex Antarctica Tuna “Save the Ocean” is a striking watch with a special aesthetic. The case of this model measures 43.2mm in diameter, meaning the Antarctica Tuna “Save the Ocean” commands attention. The case features a unidirectional rotating bezel that displays a 60-minute scale and a lume-pip at 12 o’clock. The easy-to-grip walls of the bezel contribute greatly to watch distinctive ‘tuna’ can aesthetic.

With distinctive angled lugs, an oversized, screw-down crown has been placed at four o’clock to bring an irreverent touch to what is otherwise a strong, modern watch. The scratch-resistant sapphire crystal serves as a tough dial protector whilst the screw case back adds further rigor to this solid case.

The Dial:

The playful nature of this watch is perhaps best shown on the dial of the Antarctica Tuna “Save the Ocean”. With a blue and white background showing penguin footprints in the snow, this is a poignant reminder of the falling population of these stunning creatures.

With Lumibrite hands and indexes for top visibility, numbers are replaced by bold circles to further the legibility in the most testing conditions.

This model of the Seiko Prospex Antarctica Tuna “Save the Ocean” features a date window at four o’clock whilst the Prospex logo at the middle of the dial, which brings with it years of expertise and esteem. 

The Strap:

Made from navy silicone, the strap of the Seiko Prospex Antarctica Tuna “Save the Ocean” accentuates the modern yet strong aesthetic of this watch. Comfortable in all scenarios, silicone is a smart choice for the buckle of for such a high-performance piece and is perfect for a true dive watch. With a buckle closure, there is no chance of this watch slipping away and comfort is guaranteed.

The Functions:

As a first-rate Seiko Prospex offering, the Antarctica Tuna “Save the Ocean” uses a 4R35 automatic caliber with 41 hour power reserve and 23 jewels. Highly reliable and packed with Japanese watchmaking knowhow, this is a truly well-crafted automatic watch.

With water resistance to 200m, the quality of the Antarctica Tuna “Save the Ocean” as a diving timepiece is undoubted, whilst the date function offers an extra element that’s sure to see plenty of use.

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