Seiko Cal. 5618 - 731

This Solar model from 1977 features a 42mm PVD Black case. The Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-166bbcfbf8ad]

Also known as: Sportsmatic

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

42mm

Case Thickness

9.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

30m

Dial Color

Cream

Jewels

30j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1977

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