Longines Legend Diver 59 Black Grained Dial Men 42mm L37954599

Reviving one of the most celebrated aquatic icons in 20th-century horology and paying direct tribute to the legendary 1959 Reference 7042 Super-Compressor, the Longines Legend Diver 42mm L37954599 unites historic underwater exploration with modern Swiss mechanical watchmaking. Forged in an authoritative 42.00 mm surgical-grade 316L stainless steel case measuring 12.70 mm in thickness with elongated contoured lugs, this model is defined by its iconic dual screw-down crown architecture: the crown at 2 o'clock controls the bidirectional internal rotating flange bezel for dive-time measurement, while the crown at 4 o'clock sets the time and winds the movement. The dial showcases a textured matte black grained finish that diffuses ambient glare, framed by elongated hour markers, painted Arabic numerals, polished rhodium-plated hands, and vintage-toned Swiss Super-LumiNova® luminescence beneath a box-shaped scratch-resistant sapphire crystal with multi-layer anti-reflective coating on both sides. Powered by Longines' exclusive in-house Calibre L888 mechanical automatic movement, it features an antimagnetic monocrystalline silicon balance-spring, beats at 25,200 vibrations per hour (3.5 Hz), and delivers a weekend-proof 72-hour power reserve. Mounted on a durable, moisture-resistant 22 mm black synthetic textile strap with a stainless steel buckle and backed by an embossed diver emblem on the solid screw-down case back, it is pressure-tested for a professional 300 metres (30 bar / 1,000 feet) of water resistance and protected by an official 5-year Longines international warranty.

Key Highlights

• Historic Super-Compressor Diver Heritage: Direct modern reinterpretation of the iconic 1959 Longines Reference 7042, featuring twin cross-hatched crowns and an internal rotating flange.

• Dual Screw-Down Crown System: Dedicated screw-in crown at 2 o'clock operates the internal bidirectional dive timing ring; primary crown at 4 o'clock controls movement setting and winding.

• Internal Bidirectional Rotating Dive Flange: Protected underwater elapsed-time bezel positioned beneath the sapphire crystal, impervious to accidental external knocks and underwater debris.

• Exclusive Longines Calibre L888 Automatic: In-house Swiss mechanical movement operating at 25,200 vibrations per hour (3.5 Hz) with an extended 72-hour power reserve.

• Antimagnetic Silicon Balance-Spring: Monocrystalline silicon hairspring delivering high resistance to magnetic fields and superior long-term chronometric stability.

• Tactile Black Grained Dial: Deep matte textured dial surface engineered to absorb direct glare and maximize contrast against luminous indices.

• Swiss Super-LumiNova® Luminescence: Generously applied across the elongated batons, Arabic numerals, hour/minute hands, and internal bezel arrow for underwater readability.

• Box-Shaped Sapphire Crystal: Vintage-profile domed sapphire glass treated with multi-layer anti-reflective coating on both inner and outer surfaces.

• Embossed Diver Case Back: Solid screw-down case back featuring an intricately struck medallion of a diver holding a spearfishing trident.

• Durable Black Synthetic Textile Strap: Flexible, fast-drying 22 mm technical strap designed for moisture resistance and comfort during active marine wear.

• Professional 300-Metre Water Resistance: Tested to 30 bar (300 m / 1,000 ft) with dual screw-down crowns and a solid case back for deep-sea scuba diving.

• Official 5-Year Longines International Warranty: Backed worldwide by Longines' 5-year guarantee provided for timepieces equipped with silicon balance technology.

Design & Craftsmanship

Super-Compressor Heritage & The 42mm Twin-Crown Architecture

The Legend Diver stands as one of the defining pillars of Longines’ Heritage segment. In the late 1950s, Longines utilized patented Super-Compressor case engineering by Ervin Piquerez S.A. (EPSA), which used increasing water pressure to seal the case tighter against its gaskets. Measuring 42.00 mm in diameter with a thickness of 12.70 mm, reference L3.795.4.59.9 faithfully preserves the geometry of the original 1959 Reference 7042. Forged from surgical-grade 316L stainless steel, the case combines mirror-polished flanks with satin-brushed lug tops and extended lugs that curve gently around the wrist. The twin screw-down crowns feature the historic cross-hatched grid pattern, emphasizing the instrument's utilitarian roots.

Grained Black Dial Texture, Internal Flange & Super-LumiNova®

The dial architecture prioritizes high contrast, functional legibility, and vintage character. The dial face is finished in a fine-grained matte black texture that absorbs stray light reflections under water and in bright sunlight. Classical typography is rendered through painted Arabic numerals at the cardinal hours (12, 6, and 9) accompanied by elongated minute batons. The internal rotating dive flange features a 60-minute scale with a luminescent triangle at 12 o'clock, operated smoothly via the 2 o'clock crown. Once positioned, screwing the crown down locks the internal bezel firmly in place, eliminating the danger of accidental rotation during deep dives. The polished handset and markers are coated in Swiss Super-LumiNova®, emitting a clear luminescent glow in low-light environments.

Exclusive Calibre L888 Mechanical Engineering & All-Weather Strap Comfort

Operating beneath the solid screw-down case back—embossed with the vintage diver medallion—beats Longines’ exclusive Calibre L888 (ETA A31.L11 base). Operating at an optimized frequency of 25,200 vibrations per hour (3.5 Hz) with 21 synthetic ruby jewels, this mechanical self-winding calibre incorporates an antimagnetic monocrystalline silicon balance-spring. Silicon is immune to electromagnetic fields emitted by modern electronics (smartphones, laptops, and magnetic bags) while offering superior thermal stability, allowing the movement to maintain steady chronometric precision across its extended 72-hour power reserve. The watch is paired with a heavy-duty 22.00 mm black synthetic textile strap that resists water saturation and dries rapidly, secured by a solid stainless steel pin buckle.