Mainspring for ETA Mechanical 2801, 2801-1, 2801-2, 2804, 2804-1, 2804-2, 2805, 2806, 2807, 2810, 2811, 2812, 2813, 2816, 2816-1, 2817, 2819. As an industry expert, trust these High Quality Swiss Mainsprings for Popular ETA Movements for efficient and professional watch repair. Crafted in Switzerland, these replacements are specifically designed for ETA watches, ensuring optimal performance. Keep your timepiece running smoothly with these expertly crafted mainsprings.


