Squale – 1521 Ocean COSC – 1521COSOCN.SQ20B


incl. VAT · Free Shipping · Switch to USD ($)

Delivery time: 2 - 5 days

The Squale 1521 Classic COSC is a testament to the iconic legacy of Squale, staying true to the original design by Charles Von Büren from the 1960s. This diver’s watch is renowned for its robust construction and reliable performance. With a pressure resistance of up to 50 atmospheres, it ensures a secure and confident experience for underwater explorers.

One of its standout features is the crown positioned at the 4 o’clock mark, a hallmark of Squale’s design that prevents accidental impacts during dives. The non-slip, 120-click unidirectional bezel offers maximum safety, allowing precise time setting by aligning the bezel triangle with the desired minute.

Equipped with double-sided anti-reflective sapphire crystal for optimal readability under all circumstances and a strong and reliable Swiss automatic movement. The Squale 1521 Classic COSC combines timeless design with modern functionality, making it an essential companion for diving enthusiasts.

In-Depth Review: Squale 1521 “50 Atmos” – The Swiss shark with a great tradition and heritage

Movement: Swiss Sellita SW200 Automatic (COSC Chronometer Certified)
Case: Polished 316L Stainless Steel 42mm in diameter, 12.5mm thickness
Water resistance: 50 atm / 500 meters
Strap: Polished Stainless Steel bracelet, brushed and polished, 20/18 mm

In stock




Integrity, professionalism, experience, and passion. To make unique, inimitable watches, elegant, minimalist design and high-tech materials are not enough… the secret of Squale watches lies within, in the way they are designed and constructed: friends of the sea, because they are immune to brine, and faithful companions of the most demanding divers, because they are reliable, always.


The great Swiss tradition of precision watchmaking, combined with a love of the sea and diving, were the two factors that led C. Von Büren to work exclusively on the construction of professional divers watches from the early ’50s. Initially, the “Squale” mark appeared on the cases of Swiss watches of various makes, as a sign of fine production and a quality symbol. Then, in the ’60s, Von Büren started to produce watches that also had the Squale mark on their dials, starting the brand?s institutional and commercial history. The first sporting successes, such as the world diving title won in Cuba in ’68, were linked to the names of products that had become as legendary as the medium, Master 50 atm. The ’70s saw the birth of the first “1000 meter” watch with glass on flexible mounting and snap-on lunette which could be turned in both directions. Squale continued to produce for other brands and started to supply the elite corps of a large number of armed forces, including the parachutists of Italy’s Folgore Brigade and the Italian Navy’s Diving Corps. All this has made Squale synonymous with quality and the benchmark brand for divers’ watches internationally, a status it has enjoyed for several decades.


The great Swiss tradition of precision watchmaking, combined with solidity and durability: as tradition demands, the case is made throughout from Swiss 316L steel. The components are all Swiss, too: winders, winder sleeves, and gaskets. These are essential parts of a watch that has to withstand high pressures and salt water. Watches are painstakingly assembled by master watchmakers, taking the greatest care over the fitting of the gaskets and ensuring that the case is airtight; this then undergoes strict checks, with regard to both resistance to water and timekeeping accuracy. Quality tests are performed on every single watch and not on a sampling basis.

Additional information

Additional information

Watch Brand


Watch Case Color


Watch Dial Color


Watch Band Color


Watch Band Type


Watch Case Material

Stainless Steel

Watch Case Width

42 mm

Watch Date


Watch Designed In


Watch Gender


Watch Glass


Watch Hands


Watch Movement

COSC CERTIFIED, Sellita SW 200-1, Automatic

Watch Series

1521 Series

Watch Movement Type


Watch Packaging

Box & Papers

Watch Style


Watch Warranty

1 Year

Watch Water Resistancy

50 ATM

Watch Case Thickness

13 mm

Watch Band Lug Width

20 mm

Reviews (0)


There are no reviews yet.

Be the first to review “Squale – 1521 Ocean COSC – 1521COSOCN.SQ20B”

Your email address will not be published. Required fields are marked *