The Ball Engineer II Moon Calendar is a testament to precision and functionality, limited to 1000 pieces. Powered by the automatic caliber BALL RR1807, this watch features a 40mm stainless steel case with a height of 13.4mm, and offers robust water resistance of up to 100m/330ft. Designed to withstand magnetic fields up to 4,800A/m and shocks of up to 5,000Gs, reliability is a given. Illumination is provided by 16 micro gas tubes on the hour, minute, and second hands, along with the dial for unmatched nighttime visibility. It showcases a moon phase indicator alongside month, day, and date functions. The watch is crafted with an anti-reflective sapphire crystal, a screwed-in crown, and the patented Amortiser® anti-shock system, ensuring unwavering durability. A silver dial complements the stainless steel bracelet, which is secured with a folding buckle. The lug width is 20mm, and the lug-to-lug measurement is approximately 46.6mm, balancing comfort with a striking presence on the wrist.