Seiko Cal. 4531 - 863

Released in 1990, the Cal. 4531 with design code 863 was part of Seiko's domestic market collection. With its 18mm lug width and 9.0mm profile, it sits comfortably on most wrists. [seikata-wm-defb22bc6e4c]

Also known as: Helmet, World Timer

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

9.0mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Black

Jewels

24j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1990

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