Seiko Cal. 5618 - 858

This Solar model from 1981 features a 37mm PVD Black case. With its 18mm lug width and 15.7mm profile, it sits comfortably on most wrists. [seikata-wm-7af96a179d3d]

Also known as: UFO, Bellmatic

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

37mm

Case Thickness

15.7mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Silver

Jewels

20j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1981

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