King Seiko Superior Chronometer Ref. 45-8010 - February 1970
The most important word on the dial is not "King Seiko," nor is it "Hi-Beat." The word that distinguishes this watch from other 45KS examples appears right beneath the Seiko logo: "Superior."
**IMPORTANT NOTE: Since this item ships from within the European Union, you will not be liable for customs duties within the EU.**
The line "Superior Chronometer Officially Certified" is not merely a decorative title here; it is a direct testament to Seiko’s pursuit of the highest levels of mechanical precision. The 45-8010 is a special example within the high-frequency King Seiko family that stands out due to its stricter adjustment standards, thereby earning a distinct identity.
At the heart of the watch lies the 25-jewel Calibre 4500A. This hand-wound movement operates at 36,000 vibrations per hour, meaning the balance wheel oscillates ten times per second. This high frequency not only ensures a smoother sweep of the second hand but also demands greater precision in manufacturing and regulation. The date-free design of the 4500A also defines the character of the dial; the absence of a date window allows the layout of the hour markers to remain symmetrical and uninterrupted.
The serial number 021930 on the case back dates this specific piece to February 1970. The KS Superior Chronometer medallion at the center of the case back reinforces the model's identity on the reverse side as well. On this particular example, the relief details and lettering of the medallion remain remarkably crisp and well-defined; considering the wear often seen on vintage King Seikos, this is a significant detail regarding the watch's condition. The case, measuring approximately 37mm in diameter, strongly embodies the King Seiko design language of the era. Broad shoulders, short and sharp lugs, the contrast between brushed upper surfaces and the polished bezel, and the curved form of the case give the watch both a technical and sculptural appearance. This design approach aligns with the historical roots of the KS1969 line, which Seiko has reinterpreted in modern times.
At first glance, the white-toned dial appears simple. Aside from long baton indices, a slender minute track, and dark-toned hands, there are no superfluous elements. However, the lines reading "SUPERIOR / CHRONOMETER / OFFICIALLY CERTIFIED" in the upper section and the "KS / HI-BEAT" signature in the lower section clearly convey the watch's technical identity right on the dial. The design does not shout for attention; it speaks volumes to those who know what it represents.
The watch is fitted with a newly installed black leather strap and comes with a period-correct Seiko presentation box. The case lines are crisp, the dial is clean, and the 4500A movement is visually very well-preserved.
Final Thoughts
What makes the 45-8010 special isn't merely that it is a 36,000-vph King Seiko. What sets it apart is that Seiko took an already high-standard Chronometer and elevated it a step further, declaring this status with a single word: Superior. Dating from February 1970, this example embodies the technical ambition of high-frequency Japanese watchmaking through a robust case, a balanced dial, and a chronometer identity that remains impactful to this day.
The product you are viewing was manufactured in 1970.
It has undergone professional maintenance and servicing.
The movement was completely disassembled; Each part has been cleaned, lubricated, and precisely adjusted to ensure flawless operation. (It requires no maintenance for three years, provided it is not exposed to adverse conditions.)
Product Condition: Tested; all functions are fully operational.
