Zenith El Primero Chronomaster 01.0240.410

Zenith El Primero Chronomaster 01.0240.410. Stainless steel, 40 mm polished case, fluted lugs and stepped bezel. Water resistant to 30 metres (3 ATM). Automatic chronograph calibre 410 (410Z) movement, COSC-certified, featuring 31 jewels, approximately 50-hour power reserve. Fixed stainless steel bezel. Silver dial with applied Roman numeral and triangular hour markers; dauphine-style hands; tachymeter scale around the outer chapter ring. Chronograph with 30-minute, 12-hour counters, small seconds. Day, date and month indicators (triple calendar), with date window between 4 and 5 o’clock, day at 10 o’clock, and month at 2 o’clock. Moon-phase display at 6 o’clock. Scratch-resistant sapphire crystal glass front and exhibition case back. Brown alligator leather strap with stainless steel buckle. Box and no papers. Zenith service papers dated January 2026.