3170 - ZENITH · CHRONOMASTER EL PRIMERO 410

ZENITH · CHRONOMASTER EL PRIMERO 410 Ref. 02.0240.410/21.M241.DE · ca. 2000–2005 · Stainless steel · 40 mm El Primero, full calendar, moon phase: Zenith packs a lot of watchmaking expertise into 40 millimeters while still keeping the dial clean and uncluttered. Roman numerals lend a sense of calm to the high-frequency movement. The documented manufacturer’s service from 2025 complements a timepiece that convincingly combines sporty heritage with a classic appearance. Case: Round stainless steel case with a gently domed bezel, angular chronograph pushers, and side calendar correctors; sapphire crystal and screw-down sapphire caseback. Dial: Black dial with Roman numerals and a tachymeter scale; windows for the day of the week, month, and date, as well as a moon phase display in the hour counter. Movement: Automatic, El Primero in-house caliber 410 Z with column wheel, 36,000 vibrations per hour, chronometer Functions: Two-hand watch with small seconds, chronograph with 30-minute and 12-hour counters, full calendar with day of the week, month, and date, moon phase, tachymeter scale Strap: Original five-row Zenith stainless steel bracelet M241 with satin-finished and polished links; wrist circumference approx. 185 mm Clasp: Stainless steel folding clasp, signed Zenith, original Box: Yes – Original Zenith box with hang tag; plus Zenith service box · Papers: Zenith service report with quality control, Le Locle, 2025 · Accessories: Zenith hang tag Condition: Well-maintained with slight signs of wear on the case and bracelet. Serviced and refinished by the manufacturer in 2025.