Zenith El Primero Chronomaster Helios 45mm – Ref. 03.2160.4047/02.M2160 – A stunning and exclusive Zenith El Primero Chronomaster Helios (Reference: 03.2160.4047/02.M2160), a true masterpiece of Swiss haute horlogerie that combines exceptional complications with a contemporary and captivating design.This model stands out for its silver dial. It features moon phase and solar phase (day/night indicator) complications at 6 o’clock and a double-window Large Date at 2 o’clock. Condition: Excellent cosmetic and functional condition. The watch was part of my private collection and was treated with the utmost care. The movement is accurate, and all chronographic and astronomical complications function perfectly. Accessories: The watch is sold with its box and inner box. Warranty: Original Zenith box; official Zenith warranty card. Original stainless steel bracelet complete with all links.️ Technical SpecificationsReference: 03.2160.4047/02.M2160Movement: Automatic, El Primero Manufacture Caliber 4047 (36,000 vibrations per hour)Power Reserve: Approximately 50 hoursCase: 45 mm stainless steelDial: Silvered with sunburst finish, Glass: Domed scratch-resistant sapphire crystal with anti-reflective coating on both sidesBracelet: Stainless steel with original folding claspWater resistance: 50 meters (5 atm) Watch manufactured from 2017 to 2019 . Important notes to remember, not just for this watch with complications: Never change the date or moon phase between 9 p.m. and 3 a.m. During these hours, the watch begins and completes the date and moon phase change. When setting the time, it is recommended to turn the hands clockwise.