Precision, heritage, and reliability come together in the Squale 1521 Classic COSC 1521COSCL.SQ20B. This COSC-certified diver combines Squale’s iconic 1521 case with chronometer-grade performance. With its clean black dial, durable steel bracelet, and professional 500m water resistance, it’s built for serious divers and timekeeping purists alike.

Design & Features

Dial & Display

• Dial Color: Black – Classic matte finish for timeless style and clarity.

• Markers: White Applied Indexes – Framed in steel with Super-LumiNova® for strong low-light visibility.

• Hands: Polished with Luminous Fill – Distinctive sword-style hands for easy reading.

• Display: Analog – Three-hand layout with discreet date at 3 o’clock.

• Dial Text: Features “Chronometer Officially Certified” – Signifying its COSC status.

Case & Build

• Case Shape: Cushion – Signature Squale silhouette, balanced and iconic.

• Material: Polished 316L Stainless Steel – Corrosion-resistant and highly durable.

• Case Size: 42mm – Perfectly sized for presence without bulk.

• Crystal: Sapphire – Anti-reflective and scratch-resistant for lasting clarity.

• Bezel: Unidirectional – Black insert with 60-minute scale and luminous pip.

• Case Back: Solid – Engraved with Squale branding and certification details.

• Crown: Screw-down (at 4 o’clock) – Maintains symmetry and ensures water tightness.

Strap & Comfort

• Strap Material: Stainless Steel – Solid link bracelet for robust wear and a polished look.

• Color: Silver – Complements the black dial and case finish.

• Clasp: Folding Clasp with Safety – Secure and dive-ready fit.

Movement & Performance

• Movement: Swiss Automatic (COSC-Certified Sellita SW200-1) – Highly precise, chronometer-rated movement with 38-hour power reserve.

• Functions: Hours, minutes, seconds, date.

• Water Resistance: 500 meters (50 ATM) – Designed for professional diving environments.

Specifications

• Brand: Squale

• Model: 1521COSCL.SQ20B

• Movement: Swiss Automatic (COSC-Certified Sellita SW200-1)

• Case Material: Polished 316L Stainless Steel

• Case Size: 42mm

• Dial Color: Black

• Strap Material: Stainless Steel

• Crystal: Sapphire with anti-reflective coating

• Water Resistance: 500m (50 ATM)

Key Features

• COSC Certification – Guaranteed accuracy with official Swiss chronometer status.

• 500m Water Resistance – Built for deep dives and rugged reliability.

• Classic 1521 Design – Iconic cushion case with proven professional heritage.

• High-Contrast Dial – Optimized for quick and easy underwater readability.

• Swiss Precision Movement – Trusted performance with exceptional accuracy.

Who Is It For?

• Divers – A dependable, high-precision tool for underwater adventures.

• Precision Enthusiasts – For those who value COSC-certified timekeeping.

• Collectors – A standout edition of the legendary 1521 with premium movement.

• Professionals – Refined enough for daily wear, tough enough for extreme use.

The Squale 1521COSCL.SQ20B is not just a diver—it’s a certified chronometer, blending timeless design with exceptional mechanical performance for those who demand the highest standard of precision.

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