Seiko Cal. 5231 - 561

This Kinetic model from 1969 features a 37mm Two-Tone case. Powered by the 5231 caliber with 31j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-c1aedaafbfa5]

Also known as: Samurai, Pogue

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

37mm

Case Thickness

14.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1969

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