Seiko Cal. 4531 - 631

This Solar model from 1968 features a 42mm PVD Black case. With its 20mm lug width and 9.8mm profile, it sits comfortably on most wrists. [seikata-wm-d2be527eac23]

Also known as: Flighty

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

42mm

Case Thickness

9.8mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1968

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