Seiko Cal. 5231 - 564

This Solar model from 1975 features a 42mm PVD Black case. Powered by the 5231 caliber with 31j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-9274e2cc77dd]

Also known as: Turtle

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

42mm

Case Thickness

15.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Green

Jewels

31j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1975

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