Launched in 2025, the Zenith Chronomaster Original Triple Calendar 30.3400.3610/63.C916 is a limited Japan-only release of just 55 units, featuring an exquisite malachite dial paired elegantly with a case crafted from 18K yellow gold. The watch boasts a 38.00 mm diameter, ensuring a comfortable fit, and offers 5 ATM water resistance. Its design is complemented by a cordovan leather strap with a folding clasp, which allows for easy interchangeability of straps.

Each timepiece showcases a unique pattern on the malachite dial, thanks to the natural variances within the stone. The watch tells the time through central hour and minute hands, with a small seconds display positioned at 9 o'clock. The chronograph function is precise to 1/10th of a second, indicated by a central hand that completes a rotation every 10 seconds, alongside a 60-second counter at 3 o'clock and a 60-minute counter at the 6 o'clock mark. Additional features include a full calendar displaying the day, date, and month, as well as a moon-phase complication. This model is powered by the El Primero caliber, a high-frequency movement operating at 36,000 vibrations per hour, offering around 60 hours of power reserve and consisting of 366 components, integrating both the triple calendar and moon-phase functionalities.