Zenith Chronomaster Original Triple Calendar Lapis Lazuli SS 2025 UNWORN

Released in 2025 for Zenith's 160th anniversary, the Chronomaster Original Triple Calendar Lapis Lazuli ref. 03.3400.3610/51.C910 brings one of the manufacture's most historically resonant case designs into a more expressive and decidedly collector-focused format. Its 38mm stainless steel case preserves the compact proportions and faceted architecture of the 1969 A386, while the lapis lazuli dial introduces a natural stone surface that makes each example subtly individual. The model is not described as a numbered limited edition, nor as a country or boutique exclusive, but it stands apart within the regular collection as a highly distinctive anniversary-era execution. Beneath the dial is Zenith's automatic El Primero 3610 caliber, a modern high-frequency chronograph movement beating at 5 Hz and capable of displaying true 1/10th of a second timing by way of its centrally mounted chronograph hand completing one revolution every ten seconds. Zenith pairs that technical signature with a complete calendar and moonphase, giving the watch unusual depth in a segment where historically proportioned triple calendar chronographs remain exceptionally scarce. The tri-compax layout, silvered registers, and calendar apertures are integrated with unusual discipline, preserving the clarity and balance that define the strongest Chronomaster references. Collectors will also appreciate the direct lineage to Zenith's long-standing El Primero heritage, as few brands can offer this combination of archival faithfulness, modern caliber engineering, and genuine high-beat chronograph pedigree in a serial-production model. On bracelet, the watch gains a more versatile and slightly more assertive character, reinforcing its position as both a technically serious calendar chronograph and one of the more memorable lapis dial releases of its generation. It is a reference that speaks to seasoned buyers who value mechanical substance, historical continuity, and a configuration unlikely to remain overlooked for long. Unworn with Zenith box, additional Zenith strap and papers dated 2025.