Deskripsi
“Officially Certified Chronometer Precision with Iconic Tanaka Grammar of Design Geometry.”
Introducing the King Seiko Chronometer Hi-Beat Ref. 5626-7040, a legendary 1970s Japanese dress watch produced by Daini Seikosha. Featuring a sunburst silver dial stamped with the coveted “Officially Certified Chronometer” designation, crisp baton hands, Kanji day-date wheel, and gold KS caseback medallion.
Technical Specifications:
* Model/Ref: King Seiko Chronometer Hi-Beat Automatic (Ref. 5626-7040)
* Movement: Seiko Automatic Hi-Beat Caliber 5626 (28,800 vph, 25 Jewels, Day-Date Display) — Working Curated & Tested
* Case Diameter: 38 mm (excluding crown) — Classic vintage dress proportion
* Case Construction: Monocoque / Front-loading case design (“Open Thru Glass” engraved on caseback)
* Dial & Hands: Sunburst silver dial with baton hands, applied hour markers, “Chronometer Officially Certified” text, and dual Kanji/English day-date display at 3 o’clock
* Crown: Original KS-signed winding crown
* Condition: Pre-owned (Good Condition). Physical condition shows honest wear with light scratches on the case and natural vintage aging/patina on the dial.
* Strap Note: Fitted with a tan brown leather strap with contrast stitching and black inner lining.
Historical & Collector’s Note:
* “Officially Certified Chronometer” Grade: While standard 56KS models are highly sought after, chronometer-certified variants (bearing the official certification on both the dial and caseback medallion) were adjusted to strict chronometer precision standards. This distinction makes the 5626 chronometer significantly rarer and a prime target for vintage Seiko collectors.
* Gold KS Medallion: The caseback retains its original gold “SEIKO KS CHRONOMETER” medallion. Because these gold medallions frequently suffer from moisture damage, flaking, or heavy polishing over five decades, finding a well-preserved original medallion is a difficult task.
* Taro Tanaka’s “Grammar of Design” Geometry: Seiko’s famous “Grammar of Design” rules, featuring a monocoque case with razor-sharp lug facets and distortion-free flat polished surfaces that catch light dramatically.
* High-Beat 5626 Movement & JDM Kanji Day Wheel: Powered by Daini Seikosha’s 28,800 bph high-beat caliber with a smooth sweeping seconds hand. The dual-language day wheel featuring Kanji characters (“金” for Friday) adds a desirable factor.














