Most Accurate Watch in The First Half of 2025

The advent of quartz technology in the late 1960s brought precision to a level unmatched by mechanical movements and had a profound impact on the entire watchmaking industry. The invention of Spring Drive technology heralded the emergence of a third category of movements, alongside quartz and mechanical movements. The best tag heuer carrera replica watches at captainthewatch.is.

While we still pursued watches with a COSC-certified, self-winding movement with a daily accuracy of -4 to +6 seconds, in 2025, Grand Seiko released two new Spring Drive "Frost Forest" watches equipped with Caliber 9RB2, which achieved the new U.F.A. "Extraordinary Precision" designation, achieving an annual accuracy of ±20 seconds, once again breaking the record for accuracy for a mainspring watch movement. Even quartz watches have an annual accuracy of approximately ±10 seconds, and today's accuracy of ±20 seconds per year is comparable to that of quartz watches.

Spring Drive technology has been dubbed a "third category of movements" because it combines the worry-free battery-free nature of a mechanical movement with the precision of a quartz movement. Its core technology lies in converting the mechanical movement's mainspring energy into stable power output through the high-precision regulation of a quartz oscillator. In short, it combines traditional mainspring energy with electronic watchmaking technology.

The materials used are high-strength titanium (approximately 30% lighter than stainless steel) and 950 platinum. The case is finished using Grand Seiko's signature ultra-mirror polishing technique, alternating with delicate brushing. The 37mm dial of the Spring Drive U.F.A. "Frost Forest" watch, powered by Caliber 9RB2, features a texture inspired by the winter frost on trees in the Kirimine Plateau near the Shinshu Watch Studio. The dial follows the Grand Seiko Evolution 9 design, with the hour hand featuring a "cut-off" tip, a hallmark of the brand.