Seiko Cal. 5231 - 771

This Solar model from 1965 features a 39mm PVD Black case. The Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-d6c167cf8101]

Also known as: Sea Horse

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

39mm

Case Thickness

15.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

100m

Dial Color

White

Jewels

21j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1965

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