Omega Speedmaster SUPER RACING is the first watch with "silicon hairspring fine-tuning" function among famous watches. Omega uses the unique "silicon hairspring fine-tuning mechanism" Spirate system in the Speedmaster SUPER RACING, and raises the travel time standard to 0/+2 seconds per day. It is the most accurate travel time standard among famous watches, the first in the world (note that this only refers to this Speedmaster SUPER RACING, and the world's first in the whole line standard is currently Patek Philippe's -1/+2). Best Omega Speedmaster clone watches online, buy replica watches at firstwatchclone.co.
Silicon hairsprings have always been one-piece and cannot be adjusted. Omega's first "silicon hairspring fine-tuning" adds a "bow-shaped" adjustment part to the silicon hairspring. By turning the spline screws on the balance wheel splint, tightening or loosening the "bowstring" to adjust the silicon hairspring, the adjustment accuracy reaches 0.1 seconds/day.
Most importantly, Omega has put the "silicon hairspring fine-tuning mechanism" into practical use, and I have also seen the Speedmaster SUPER RACING circulating and trading on the market. Although the “silicon hairspring fine-tuning mechanism” is currently only used on the Speedmaster SUPER RACING watch, once it is popularized to other Omega watches in the future, Rolex and Patek Philippe will no longer be Omega’s rivals in terms of timekeeping accuracy.
