Condition: Used
Year of Manufacture / Movement
Year: 1971
Ref.: 5626-5010
Movement: Automatic (Self-winding)
Description & Selling Points
"Sharp square angles and 3-facet cut glass. An unconventional 56 King Seiko."
We are pleased to introduce the King Seiko Automatic "HI-BEAT Ref.5626-5010." Alongside Grand Seiko, King Seiko led the era as one of Seiko's pinnacle brands. Among them, the 56KS series introduced in the late 1960s boasts exceptional perfection, powered by a high-precision hi-beat (28,800 bph) movement.
This timepiece is a rare 1971 model featuring a distinctive TV-screen style case. Combining a substantial square case with a 3-facet cut glass crystal, it is a unique 56 King Seiko rich in vintage appeal.
The dial is a refined silver dial, set with bar indices and matching bar hands. The "SEIKO" logo is positioned at 12 o'clock, while the "KS" emblem, "HI-BEAT" text, and the Daini Seikosha (Kameido factory) logo are laid out at 6 o'clock. A practical day-date display (with English and Japanese day switching) completes the 3 o'clock position.
The stainless steel case offers a strong presence, measuring approximately 35mm in width and 11mm in thickness. Its square geometry is highlighted by integrated lugs extending vertically, paired with a 3-facet cut crystal. The case construction features a unique holder-style frame-fit back.
It comes fitted with an aftermarket leather strap. The brown tone of the leather nicely complements the sharp edges of the square case, giving the wrist an elegant and classical character.
Diverging from traditional round models, this retro-modern TV-screen model offers a unique presence with its 3-facet cut glass and authentic 1971 heritage.
Condition & Remarks
Dial: Shows signs of aging such as spots, light stains, and minor dust particles. The hands and indices display patina/aging.
Case & Case Back: Shows scuffs, minor scratches, and small dings from use.
Crystal: Shows scuffs, minor scratches, and small edge chips.
Strap & Buckle: Both are aftermarket items. Shows signs of wear, but remains ready to wear immediately. The buckle is gold-plated.
Operation: The crown is located on the right side of the case. Pull out to the first position and turn to quickset the day and date. Pull out to the second position to set the time. Features a hack (second-hand stop) function.
Accessories: Watch head with strap only (no box/papers).
Accuracy & Dimensions
Accuracy: Running within 30 seconds per 24-hour period based on flat measurement (positional differences may occur during daily wear).
Lug Width: 20mm
Case Diameter: Approx. 35mm (excluding crown)
Lug-to-Lug: Approx. 41mm
Thickness: Approx. 11mm (including crystal)