Zenith El Primero Chronomaster Complete Calendar Moonphase 39mm – Ref. 01.0240.410 – COSC – 1996

Info

The Zenith El Primero Chronomaster Complete Calendar with Moonphase, reference 01.0240.410, represents one of the most fascinating and complete expressions of Zenith’s production from the 1990s. A timepiece that combines the iconic high-frequency El Primero movement with one of the most elegant and technically refined complications in classical watchmaking: the complete calendar with moonphase.

Produced in 1996, as confirmed by the COSC chronometer certificate, this Chronomaster perfectly embodies the balance between technical rigor and aesthetic refinement typical of the Le Locle manufacture. The El Primero caliber, renowned for its frequency of 36,000 vibrations per hour, ensures outstanding precision and an exceptionally smooth time display, while the astronomical complications add depth and character to an already richly detailed dial.

The design reflects the unmistakable style of first-generation Chronomaster models: harmonious proportions, a well-balanced dial, perfectly integrated chronograph counters, and calendar indications that remain clear without ever appearing intrusive. A watch conceived for the discerning enthusiast, able to appreciate not only mechanical performance but also the historical and collectible value of a complete El Primero from one of the most interesting eras of Zenith production.

Case, Bracelet, Dial & Glass

General Overview: This Zenith El Primero Chronomaster Complete Calendar with Moonphase, reference 01.0240.410, immediately stands out for its excellent overall condition, further enhanced by the presence of the original strap, preserved in near-new condition. Adding to the appeal of this example is a complete set, well preserved and perfectly consistent with the condition of the watch itself. The renowned El Primero movement, visible through the transparent caseback, is in excellent running condition. During inspection at our certified laboratories, no mechanical anomalies were detected. The amplitude is fully consistent with expectations for an El Primero equipped with complete calendar and moonphase complications, while the near-zero beat error confirms correct balance positioning and optimal escapement performance.

Case: The 39 mm stainless steel case is in excellent condition, retaining its original factory finishes. Minor superficial hairlines and light marks are present on the case and bezel, consistent with very careful use, imperceptible to the touch and barely visible once the watch is worn.

Strap: The original black leather strap is in excellent condition and fitted with its original stainless steel pin buckle, also very well preserved.

Dial: The silver-colored dial is in excellent condition, free from signs of wear and perfectly legible in all its indications.

Crystal: The sapphire crystal shows very faint superficial marks, visible only under magnification and in no way affecting the legibility of the dial.

Accessories & Warranty

The watch is accompanied by a complete set, including inner box, outer cardboard box, original warranty, booklet, and COSC certificate. Completing the set, we provide our O&D Vintage warranty along with the certificate of authenticity and lawful provenance.

We offer a 24-month warranty from the date of purchase, covering the correct functioning of the movement and any mechanical defects not caused by improper use or accidental damage.