Silver Splint of Balance Wheel Upgrade: Premium Fit for ETA2660 & ETA2661 Movements

Unlock new levels of horological harmony with the new silver splint of balance wheel, precision-milled to slot flawlessly inside ETA2660 and ETA2661 calibers. Designed with a modern, minimalist aesthetic, the contoured splint replaces the factory component without adding visual clutter. Brushed-silver surfaces catch the light cleanly, giving your movement a crisp “heart” that looks as refined as it performs. Elevate a vintage project or refresh a daily-wear piece—either way, the installation takes minutes and the payoff lasts a lifetime.

The splint’s razor-thin profile maintains perfect poise between the balance staff and the upper plate, eliminating micro-vibrations that chip away at accuracy over time. Each edge is deburred so the hairspring glides unimpeded while amplitude remains in the optimal range. Crafted from aerospace-grade nickel-silver alloy, the metal resists corrosion and thermal expansion, protecting rate stability whether you’re commuting through morning frost or sweating through tropical summer nights. Your ETA2660 or ETA2661 keeps its beat day after day—so you can leave time correction apps to second-rate watches.

Modern workshop ergonomics inform every dimension of this component. Unlike generic replacements, this splint arrives pre-drilled to exact ETA tolerances, with pilot holes for the regulating-study screws already countersunk for flush seating. A matching set of blue screws is included for continuity of color, giving even a vintage luxury reissue the subtle pop contemporary enthusiasts crave. Whether your collection veers Nordic minimal or neo-vintage tool-watch, the understated silver splint thread-wraps the movement without shouting for attention.

Ready for an under-crystal transformation? Slide your movement out of the case, drop the new balancing splint into position, and witness an instant shift from quiet function to elevated form-major in minutes, timeless in spirit. Stock is limited; once this micro-batch is gone, the next production run will arrive months later under updated costs. Order today, and let your ETA2660/2661 beat with silver-splint serenity—proof that even the smallest upgrade can make timekeeping feel artfully complete.