Squale — 1521 Black Blasted / Swiss Automatic — Sapphire · Steel Bracelet · 42mm
1521 Black Blasted
1521BKBL.SQ20S  ·  Swiss Automatic  ·  Sellita SW200-1  ·  Sapphire  ·  500m  ·  42mm
WatchNation
Authorised Squale Retailer
Chester  ·  Est. 10 Years
Authorised UK Retailer Swiss Sellita SW200-1 Sapphire Crystal 500m / 50 ATM Black Blasted 316L Steel Steel Bracelet Unidirectional Bezel 42mm Free UK Shipping 30-Day Returns
1521 Black A modern tool watch with deep historical roots, the 1521BKBL.SQ20S blends tactical aesthetics with uncompromising dive performance. With a black blasted case, Swiss automatic movement, and a sleek stainless steel bracelet, this timepiece offers rugged functionality and refined versatility — ready for ocean depths or urban streets.
At a glance
Key Features

Black blasted case — a tactical, non-reflective PVD finish over 316L stainless steel, built for performance.

Iconic 1521 design — a heritage dive case trusted by professionals for decades.

Professional 500m rating — suited for serious diving and aquatic activities.

Durable steel bracelet — a brushed-finish solid link bracelet, comfortable and secure for daily wear.

Reliable Swiss movement — the Sellita SW200-1 delivers precision and consistency with a 38-hour power reserve.

Dial & Display
Clarity Built In

A matte black dial keeps glare down and legibility high. Prominent Super-LumiNova® hour markers and Squale's signature luminous-coated hands make the dial easy to read in low light, while the traditional three-hand layout keeps a date window at 3 o'clock without crowding the display.

The unidirectional rotating bezel carries a 60-minute scale with precise action and a luminous pip for dive timing.

Case & Build
The Iconic 1521 Case, Reworked

The 42mm round case follows the streamlined, functional silhouette of the iconic 1521, finished in a matte black PVD blasted coating over 316L stainless steel for a tactical, scratch-resistant look that balances diving capability with everyday wear.

A sapphire crystal with anti-reflective coating protects the dial, the case back is solid and laser-engraved with Squale branding and specifications, and the screw-down crown at 4 o'clock improves ergonomics while enhancing water resistance.

Bracelet & Comfort
Robust and Secure

The solid-link stainless steel bracelet has a brushed finish for a cohesive look, suited to both casual and active use. A folding deployment clasp with push-button release gives a secure closure that's easy to adjust throughout the day.

Movement & Performance
Swiss Automatic, Built to Last

The Swiss-made Sellita SW200-1 is a self-winding automatic movement known for smooth operation and dependable serviceability, offering a 38-hour power reserve alongside hours, minutes, seconds and date functions. Water resistance is rated to 500 metres (50 ATM), meeting professional diving standards.

Specification
Technical Detail
Model1521BKBL.SQ20S
BrandSquale
MovementSwiss Automatic (Sellita SW200-1)
FunctionsHours, minutes, seconds, date
Power Reserve38 hours
Case ShapeRound
Case Size42mm
Case Material316L stainless steel, black blasted PVD finish
DialBlack, matte, luminous indexes and hands
GlassSapphire, anti-reflective coating
BezelUnidirectional rotating, 60-minute scale, luminous pip
CrownScrew-down, positioned at 4 o'clock
CasebackSolid, laser-engraved
Water Resistance500 metres (50 ATM)
BraceletStainless steel, brushed, folding deployment clasp
GenderMen's
WarrantyOfficial Squale manufacturer warranty
Why buy from WatchNation?
Our Commitment
01 Authorised Squale Retailer
We source every Squale directly from the brand — your watch is 100% authentic and backed by the official Squale warranty.
02 Expert Support Before & After Purchase
Ten years of specialist watch retail behind us. Message us through eBay with any question on sizing, straps or servicing and a real person answers.
03 Fully Boxed & Complete
Supplied in its official Squale presentation box with all documentation.
04 Fast, Tracked UK Delivery
Free tracked UK shipping, dispatched promptly and packed for transit.
05 30-Day Returns
Not right for you? Return it within 30 days in unworn condition for a full refund.
Any questions about this watch? Use the “Contact seller” link on this listing, or visit our contact page and we’ll come straight back to you.
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