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Squale 1521 Ocean COS Automatic Sunray Blue Dial Steel Strap Men's Watch 1521COSOCN.SQ20B
Engineered for precision and elegance, the Squale 1521 Ocean COSC 1521COSOCN.SQ20B combines dive-watch heritage with Swiss chronometer-grade performance. Featuring a striking sunray blue dial, stainless steel construction, and a COSC-certified automatic movement, this timepiece delivers both underwater reliability and refined everyday appeal.
Design & Features
Dial & Display
Dial Color: Sunray Blue – Deep ocean-inspired finish with radiant texture.
Markers: Applied Indexes – Framed in polished steel with Super-LumiNova® for strong legibility.
Hands: Polished Steel with Luminous Fill – Broad sword-style hands for quick and clear reading.
Display: Analog – Three-hand layout with date window at 3 o’clock.
Dial Detail: "Chronometer Officially Certified" text highlights COSC status.
Case & Build
Case Shape: Cushion – Signature Squale 1521 design for optimal ergonomics and style.
Material: Polished 316L Stainless Steel – Corrosion-resistant and expertly finished.
Case Size: 42mm – Balanced for presence and comfort.
Crystal: Sapphire – Scratch-resistant with anti-reflective coating for underwater visibility.
Bezel: Unidirectional – Blue insert with 60-minute dive scale and luminous marker.
Case Back: Solid – Laser-engraved with Squale logo and COSC designation.
Crown: Screw-down (4 o’clock position) – Protects against water ingress and accidental adjustment.
Strap & Comfort
Strap Material: Stainless Steel – Solid link bracelet for strength and sophistication.
Color: Silver – Complements the case and enhances the blue dial.
Clasp: Folding Clasp with Safety – Secure and comfortable for daily or dive wear.
Movement & Performance
Movement: Swiss Automatic (COSC-Certified Sellita SW200-1) – Precision chronometer-grade movement with 38-hour power reserve.
Functions: Hours, minutes, seconds, date.
Water Resistance: 500 meters (50 ATM) – Professional-grade depth rating for serious divers.
Specifications
Brand: Squale
Model: 1521COSOCN.SQ20B
Movement: Swiss Automatic (COSC-Certified Sellita SW200-1)
Case Material: Polished 316L Stainless Steel
Case Size: 42mm
Dial Color: Sunray Blue
Strap Material: Stainless Steel
Crystal: Sapphire with anti-reflective coating
Water Resistance: 500m (50 ATM)
Key Features
COSC Certification – Officially certified Swiss chronometer for exceptional accuracy.
Sunray Blue Dial – Reflects light with oceanic brilliance and visual depth.
500m Water Resistance – True dive-ready build for extreme underwater use.
Unidirectional Bezel – Time your dives reliably and safely.
Timeless Squale Design – Merges tradition with top-tier mechanical performance.
Who Is It For?
Professional Divers – Built to perform where it matters most: underwater.
Watch Aficionados – A certified chronometer with iconic dive heritage.
Collectors – Rare blend of COSC precision and vintage dive design.
Daily Wearers – Rugged and elegant for all-occasion versatility.
The Squale 1521COSOCN.SQ20B is where high-performance mechanics meet aquatic elegance—a professional dive watch that stands out for its beauty, precision, and heritage.
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UK Delivery
| Selling Price | Royal Mail 48 (Tracked) |
Royal Mail 24 (Tracked & Signed) |
Special Delivery Next Day (Mon – Fri) |
Special Sunday Delivery (Before Sat 12pm) |
Royal Mail Special Delivery by 1pm |
|---|---|---|---|---|---|
| £0 to £99.99 | FREE | £4.99 | £7.99 | £7.99 | £9.99 |
| £100 to £499.99 | N/A | FREE | £7.99 | £7.99 | £9.99 |
| £500 or more | N/A | N/A | FREE | £7.99 | £9.99 |
We know your order is important to you, so we use Royal Mail’s tracked delivery service on all UK orders.
We also offer Royal Mail Special Delivery service, which for an additional fee offers guaranteed delivery the next day before 1pm.
*Royal Mail Tracked 24 and Royal Mail Tracked 48 services are 98% accurate but not guaranteed.
Orders placed before 5pm (Monday–Friday) are dispatched the same day. Orders placed on Saturday or Sunday are dispatched the following Monday.
International Shipping & Duties (Delivered At Place – DAP)
We’re pleased to offer worldwide delivery with fully tracked and insured shipping.
How international orders work
All international orders are shipped on DAP (Delivered At Place) terms. This means:
- The price you pay at checkout covers your goods and international shipping only.
- WatchNation does not collect or charge any overseas sales tax, import VAT, or customs tariffs (duties).
- When your order reaches your country, local customs authorities may apply:
- Import VAT (value-added tax),
- Tariffs or customs duties (import taxes based on product category and value), and
- Handling or clearance fees from the courier.
These charges are set by your country’s customs authority and are payable by you before delivery.
You’ll be contacted directly by DHL with a secure link to pay any applicable charges. Once cleared, your parcel will be released and delivered promptly.
Estimated delivery times (after dispatch)
- European Union: approximately 2–5 working days
- Rest of World: approximately 5–7 working days
Customs processing times vary by country and may extend delivery slightly.
If import charges, tariffs, or duties are not paid
If local charges are unpaid or delivery is refused, the shipment will be returned to us. In this case, we will refund your order minus the outbound shipping cost and any return or customs fees billed to us by the carrier.
Estimating import costs
Import VAT and duty rates vary by country. You can check estimated import taxes and tariffs by contacting your local customs authority or using your government’s online import calculator.
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Frequently Asked Questions
Yes — we are an Authorised Dealer for every brand we sell. All watches come with an official box, papers, and a full manufacturer’s warranty.
Every watch includes a manufacturer warranty. You’ll find more warranty info listed in the product description.
Orders placed before 5pm (Mon–Fri) are dispatched the same day. Order before 12pm on Sat for same-day dispatch. Free UK delivery is available on all orders, and tracking details are provided once shipped.
Yes — you have 30 days from delivery to return or exchange your item, provided it’s unused and in its original packaging.


