Just as Seiko’s 1960’s suite of sports timers brought important innovation to the global sports arena, so the creation of the Seiko Speedtimer in 1969 was a crucial landmark in the history of the chronograph. Thanks to its vertical clutch and column wheel, it made the measurement of elapsed time
more precise and error-free than ever before. Hand assembled by Seiko’s skilled watchmakers, this new Speedtimer is powered by Caliber 8R46, which, like the Caliber 6139 used in the original 1969 Speedtimer, incorporates vertical clutch and column wheel mechanisms to ensure the highest possible
levels of precision and durability. The escapement is lightweight and strong, thanks to the use of MEMS technology which enhances the stability of the watch’s precision. The pushers are prominent and have a wide and flat upper surface area to facilitate accurate operability. With the
push of the reset button, the hands return back to zero instantly and in perfect synchronization, ready for the next race.