Longines Spirit Zulu Time Anthracite Dial Men 42mm L38125536

Celebrating a century of pioneering aviation dual-time instruments and the iconic 1925 Zulu Time pocket watch, the Longines Spirit Zulu Time 42mm L38125536 unites authentic pilot heritage with precious-metal luxury . Forged in an ergonomic 42.00 mm surgical-grade 316L stainless steel case crowned with a genuine 18-karat yellow gold cap (200 microns) on the bidirectional rotating bezel rim and screw-in crown, this timepiece is fitted with a scratch-proof chocolate-brown ceramic insert bearing a 24-hour gilded scale . The dial showcases a textured sunray anthracite finish with gilded accents, applied Arabic numerals, and five applied gold stars—the historic hallmark of Longines' highest-precision calibres—accompanied by an arrow-tipped 24-hour GMT hand and a date window at 6 o'clock beneath a domed anti-reflective sapphire crystal . Powered by the exclusive in-house Calibre L844.4 mechanical automatic movement certified by the COSC (Contrôle Officiel Suisse des Chronomètres), it features true "flyer" independent local hour adjustment, an antimagnetic monocrystalline silicon balance-spring, and an extended 72-hour power reserve . Mounted on an articulated stainless steel link bracelet with an interchangeable quick-release system and a double-safety folding clasp, it provides 100 metres (10 bar / 330 feet) of water resistance and is protected by an official 5-year Longines international warranty .

Key Highlights

• Exclusive Longines Calibre L844.4 Automatic: In-house Swiss mechanical movement featuring true "flyer" independent local jumping hour adjustment, 25,200 vph frequency, and a 72-hour power reserve .

• COSC-Certified Swiss Chronometer: Officially tested and certified by the Contrôle Officiel Suisse des Chronomètres for stringent timing accuracy across varied positions and temperatures .

• Precious 18K Yellow Gold Cap Metallurgy: Solid 18-karat yellow gold capping (200 microns thick) bonded to the bidirectional bezel rim and fluted screw-in crown .

• Bidirectional Chocolate-Brown Ceramic Bezel: Scratch-proof ceramic insert calibrated with a 24-hour gilded scale and a luminescent Super-LumiNova® triangle at 12 o'clock .

• True "Flyer" GMT Travel Complication: Independent hour hand that jumps forward or backward in 1-hour increments without stopping the seconds or altering the home timezone hand .

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

• Radiant Sunray Anthracite Dial: Deep graphite-charcoal dial face complemented by warm gilded chapter accents and a balanced date aperture at 6 o'clock .

• Five Applied Gold Stars: Historic Longines symbol signifying the highest internal standards of movement quality, reliability, and precision .

• Domed Anti-Reflective Sapphire Crystal: Multi-layered anti-reflective coating on both inner and outer surfaces for maximum dial legibility from any viewing angle .

• Solid Stainless Steel Link Bracelet: Ergonomic multi-link metal bracelet featuring brushed outer links and polished center segments with a quick-release strap changing system .

• Double-Safety Folding Clasp: Sturdy folding deployant buckle featuring dual push-piece release for reliable wrist retention .

• Robust 100-Metre Water Resistance: Tested to 10 bar (100 m / 330 ft) with a screw-in crown, offering complete security during swimming, recreation, and travel .

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

Design & Craftsmanship

Aviation Dual-Time Heritage & 18K Gold Cap Architecture

The Zulu Time collection traces its origin to 1925, when Longines created the first dual-time pocket watch featuring the "Zulu" flag (the universal nautical and aviation symbol for Greenwich Mean Time) . Reference L3.812.5.53.6 channels this rich heritage into modern luxury . Measuring 42.00 mm across with a thickness of 13.90 mm, the case is sculpted from surgical-grade 316L stainless steel with vertical satin-brushed flanks and polished chamfers . The bidirectional rotating bezel rim and knurled crown are encased in a solid 18-karat yellow gold cap 200 (a durable 200-micron layer of solid gold bonded over steel) . A rich chocolate-brown ceramic insert completes the bezel, offering scratch immunity and a tactile fluted grip for tracking three separate time zones concurrently .

Anthracite Dial Depth, Gilded Accents & Swiss Super-LumiNova®

The dial architecture prioritizes cockpit legibility, balanced symmetry, and warm vintage luxury . Finished in a subtle sunray anthracite hue, the dial shifts dynamically between slate grey and deep charcoal under ambient light . Applied yellow gold-toned Arabic numerals and gilded baton hands are filled with high-grade Swiss Super-LumiNova® that glows intensely in low light . A gilded arrow-tipped 24-hour GMT hand sweeps across the 24-hour ceramic bezel, while an integrated date aperture sits symmetrically at 6 o'clock beneath the five applied gold stars . The outer minute track is punctuated by applied gilded diamond indices, emphasizing the vintage instrument aesthetic .