Description

King Seiko 4502-8010 Superior Chronometer: The Pinnacle of Japanese Precision

Step into the world of vintage Japanese watchmaking at its absolute peak with this King Seiko Superior Chronometer 4502-8010. If youre familiar with the already-respected King Seiko Chronometers, the Superior Chronometer takes everything a step furtherboth in accuracy and collectability.

What Sets the Superior Chronometer Apart?

While most King Seiko Chronometers are already recognized for their precision and craftsmanship, the Superior Chronometer is a cut above. Produced in very limited numbers around 19691970, these watches were regulated to Seikos rare AA grade: an accuracy standard of -3 to +6 seconds per day. This is the same level of precision demanded of Grand Seiko from the same eramaking the Superior Chronometer the ultimate King Seiko for purists and collectors.

Unlike the standard Chronometer models (which met the A grade of -1 to +10 seconds per day), the Superior Chronometer was subjected to even stricter hand-adjustment and testingoften accompanied by a special certificate and always marked Superior Chronometer on the dial and caseback. These details, along with the extremely short production run, make the 4502-8010 Superior Chronometer a genuine rarity in the vintage Seiko universe.

The Heart of the Watch: Dainis Legendary 45-Series

At the core is the Seiko 4502A Hi-Beat movementa manually wound, 36,000 bph caliber. This was Seikos answer to the Swiss chronometer trials of the 1960s, and these movements helped establish Seiko as a true leader in global watchmaking precision. The 45-series was also the last hand-built King Seiko line, with every movement meticulously adjusted by Dainis master watchmakers.

Design: A Classic with Subtle Superiority

• Case: The 37mm steel case with its signature sharp, mirror-polished lugs and wide, flat surfaces is all about Japanese 1970s style. The Superior Chronometer is almost always found in spectacularly preserved condition, its medallion caseback and clean lines a testament to both Seikos design and the care bestowed by prior owners.
• Dial: Only the Superior Chronometer carries the proud Superior Chronometer script on the dialsubtle, but an unmistakable badge for those in the know.
• Caseback: Look for the matching engravinga sure sign youre holding the real deal, not just a standard Chronometer.

Rarity and Collector Appeal

The Superior Chronometer is one of the rarest King Seikos, and for good reason. Its limited production window, higher adjustment standards, and distinctive markings make it a serious collectors piece. Many believe these watches rivaland sometimes exceedthe precision of their Grand Seiko siblings from the same era, all while flying under the radar.

Specification:

Maker:Seiko

Model: King Seiko 4502-8010 Superior Chronometer (Ultra rare model)

Era:1970 Jan

Case Diameter:37 mm

Lug to Lug:42 mm

Lug Width:18 mm

Case Condition:Unpolished steel case in mint condition with the gold medallion still well preserved on the caseback.

Dial Condition:White dial in perfect condition

Movement: Manual winding Hi-Beat Movement 36,000bph adjusted to Superior Chronometer Grade (last King Seiko with a 36,000 bph movement), in running condition

And of course, it comes with any color of our Saddle Series Leather Straps. However we think this watch actually looks good when pairing with a Nato Strap during the hot summer too. That’s why we will also include on for free! Just let us know which colour you like to pair the beauty up with.