Vintage King Seiko Hi-Beat: What to Buy and What to Avoid

The 5625-7111 pairs a 36 mm steel case with an automatic caliber 5625B, 25 jewels and a silver sunburst dial. The 5626-7111 keeps the same diameter but uses caliber 5626A and a vertically brushed silver dial. Those finishes are not interchangeable descriptions: the surface should agree with the reference and movement.

The 5626-5010 is the deliberate alternative. Its square 35 mm steel case and vertically brushed silver dial make it visibly more experimental than the round 36 mm watches. The round versions are easier to buy because their restrained shape exposes polishing clearly; the square case is the better choice only when its corners and planes remain defined.

Value sits in the dial, case geometry and coherent reference-to-movement pairing. Caliber choice matters, but it does not rescue a redial or heavily softened case. Of the examples we have handled, the strongest buying logic is simple: pay the premium for preserved surfaces rather than cosmetic shine.

At 36 mm excluding the crown, the round 5625-7111 and 5626-7111 wear as compact dress watches rather than undersized curiosities. Their applied faceted indices and silver finishes remain legible through contrast and reflected light. The cases work naturally with a shirt cuff, while the angular steel surfaces keep them from reading as plain.

The square 5626-5010 measures 35 mm excluding the crown, but its broad geometric outline gives it more visual presence than that figure implies. It is the more assertive early-1970s choice. If one watch must cover formal and ordinary weekday use, the round 36 mm case is easier to live with.

Heavy polishing is the first problem to price in. It softens facets, rounds corners and blurs the transitions that give these cases their structure. Surface scratches are less serious than mushy geometry because marks can remain honest evidence of wear, while lost metal cannot be returned by servicing.

A redial is the larger financial fault. Silver sunburst and vertical brushing should remain distinct, applied indices should sit consistently, and the printed identity must belong with the reference and caliber. A genuine service dial is not a redial, but it is still a replacement and should be described as such. A watch combining parts that never shipped together is franken, even when every component is genuine Seiko.

Movement condition cannot be established from dial photographs. The service history is unknown unless documentation accompanies the watch, and automatic caliber 5625B or 5626A needs mechanical assessment rather than assumptions based on appearance. Replaced crowns or crystals may be period-correct consumables, but that is not proof they are original.