Seiko Cal. 5631 - 873

This Quartz model from 1967 features a 44mm Titanium case. The Bidirectional bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-0faf4d3e6528]

Also known as: Pogue, Baby Tuna

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

44mm

Case Thickness

11.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Black

Jewels

28j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1967

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