Seiko Cal. 5689 - 331

The Seiko 5689-331 represents an important milestone in Seiko's 1971 lineup. Powered by the 5689 caliber with 21j jewels beating at 28,800 bph, it delivers a 59 hours power reserve. [seikata-wm-833be3d680cf]

Also known as: Pogue, Bullhead

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

40mm

Case Thickness

10.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

180m

Dial Color

Burgundy

Jewels

21j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1971

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