Seiko Cal. 5631 - 998

The Seiko 5631-998 represents an important milestone in Seiko's 1980 lineup. It features a Cream dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-5a45aaf60296]

Also known as: Pogue, Rally

Specifications

Movement

Solar

Case Material

Titanium

Case Width

42mm

Case Thickness

10.2mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Cream

Jewels

20j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1980

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