This IWC Ingenieur Ref. 666 is a vintage masterpiece, renowned for its robust design and technical innovation. Crafted in stainless steel, this timepiece features a classic 36mm case, offering both durability and timeless elegance. Designed in the 1950s as a professional tool watch, it was engineered to withstand magnetic fields, making it a favorite among scientists and engineers. At its heart beats the IWC Pellaton Caliber 852/8521 automatic movement, a groundbreaking system known for its efficiency and reliability. The clean and legible dial, with applied hour markers and dauphine hands, ensures optimal readability. The soft iron inner cage provides anti-magnetic protection, reinforcing its tool-watch identity. A true icon of mid-century watchmaking, the IWC Ingenieur Ref. 666 remains a highly collectible piece, representing IWC’s commitment to precision, innovation, and functional elegance.