Universal Genève Caliber 2-66 Restoration | Ultra-Thin Microrotor Watch Service

Today we dive into the complete restoration of a Universal Genève watch, powered by the legendary Caliber 2-66 microrotor. This ultra-thin automatic movement is both elegant and innovative… but this particular watch came with serious issues. 🔍 Problems encountered: Poor accuracy on the Timegrapher (+272s/day, very low amplitude) Excessive endshake/side shake on pivots and wheels Barrel spring twisted → required full replacement Dust and fibers affecting the balance wheel Wear on jewels and need for proper lubrication 🔧 Restoration process: Full disassembly of the Universal Genève Caliber 2-66 Deep cleaning (multi-step process) Lubrication and jewel oiling with precision Adjustments on pivots and rubies to correct excessive endshake Installing a brand new mainspring in the barrel Complete reassembly and fine regulation 🕰️ About the Caliber 2-66 Introduced in the 1960s, this microrotor movement was a groundbreaking innovation. Unlike standard automatic calibers with a large oscillating weight placed above the movement, the microrotor is integrated at the same level as the gear train and balance wheel. This design allowed for an exceptionally thin case, making Universal Genève one of the most advanced watchmakers of its era. 📈 With Breitling recently reviving the Universal Genève name, vintage models like this one have seen a strong rise in collector interest and market value. 🎥 On this channel, I share detailed watch restorations, repairs, and horological knowledge. If