Zenith - Chronomaster El Primero Triple Calendar Moonphase - 01.0240.410 - Unisex - 1990-1999

A0000004586

Item: ZENITH EL PRIMERO CHRONOMASTER CHRONOGRAPH WATCH, triple calendar and moon phases, polished stainless steel case with silver guilloché dial, applied Roman numerals and tachymeter scale
Reference / Edition: 01.0240.410
Diameter: 40 mm
Bracelet: black alligator leather strap with matching stitching and signed steel Zenith buckle, strap length 175 mm
Movement: automatic, Zenith El Primero 410 caliber with 31 jewels, high-frequency chronograph (36,000 alt/h) with triple calendar and moon phase, chronometer certified, visible through the sapphire crystal case back
Period: late 1990s – early 2000s
Materials: stainless steel case, pushers, crown and buckle; sapphire crystal on front and back; silver dial with guilloché counters and applied Roman numerals; crocodile leather strap
Condition: very good preservation state. The case and bezel retain their original polish with fine signs of wear typical of age, most noticeable on the flanks and the back; no crystal damage and the dial is impeccable, with the counters, day and month windows and the moon phase disc perfect. Recently serviced and tuned in our workshop, functioning correctly: running and amplitude within chronometer parameters. The crocodile strap is worn, with the holes and inner lining marked by use.
Accessories: only the loose piece; no box or papers visible in the photos.

Workshop review:
· 10/07/2026, workshop report: This is a watch with automatic movement. In the quality control, a deviation of 1 s/day, an amplitude of 295° and a beat error of 0.3 ms were recorded. Condition at arrival: 7/10. Condition at departure: 8/10.

The photographs are part of the description.