Squale 1521 Blue Ray Automatic Smoky Blue Dial Rubber Strap Men's Watch 1521PROFD.HT

The Squale 1521 Blue Ray Rubber combines the robust construction of a professional dive watch with a smoky blue dial that changes character as the light shifts. Crafted from polished 316L stainless steel, the case measures 42mm in diameter, 48mm from lug to lug and 12.5mm thick, offering substantial proportions while remaining comfortable on the wrist. Beneath the flat sapphire crystal with its anti-reflective coating, the Blue Ray dial transitions from vivid blue tones at the centre to darker shades around the edge, creating a distinctive fumé effect. Printed hour markers and broad hands filled with Super-LumiNova C3 ensure excellent legibility, while the unidirectional bezel features an aluminium insert with a sixty-minute diving scale designed for underwater timing.

Swiss Automatic Movement

At the heart of the watch is the Swiss-made Sellita SW200-1 automatic movement in Elaboré grade. Operating at 28,800 vibrations per hour and equipped with 26 jewels, the calibre delivers approximately 38 hours of power reserve while supporting both hacking and hand-winding functions. The movement is housed within a case fitted with a screw-down crown and a solid screw-in caseback, contributing to the watch's impressive water resistance of 50 ATM. Combining proven Swiss engineering with practical functionality, the SW200-1 complements the purposeful design of the 1521 Blue Ray and its role as a capable diving instrument.

Rubber Strap

The 1521 Blue Ray is fitted with a black rubber strap designed to withstand demanding conditions while remaining comfortable on the wrist. Measuring 20mm wide and secured by a stainless steel pin buckle, the strap reinforces the watch's practical character and creates a strong contrast against the smoky blue dial and polished case. Its durable construction makes it equally suited to underwater use and everyday wear.

The Squale 1521 Signature

One of the defining features of the 1521 collection is the crown positioned at 4 o’clock, a layout originally developed to improve comfort on the wrist and reduce the likelihood of accidental knocks during active use. Combined with the distinctive Von Büren case profile, this configuration has become one of the collection’s most recognisable characteristics and has remained largely unchanged for decades.

The Blue Ray edition distinguishes itself through its fumé dial finish, which shifts from vibrant blue to deeper tones depending on the surrounding light. Together with its substantial 500-metre water resistance and professional diving specifications, these details give the 1521 Blue Ray Rubber a distinctive identity within Squale’s line-up of Swiss dive watches.