Seiko Cal. 5231 - 979

This Hand-Winding model from 1979 features a 46mm Two-Tone case. It features a White dial protected by a Sapphire crystal and offers 130m of water resistance. [seikata-wm-b4b6b5a7313f]

Also known as: Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

46mm

Case Thickness

13.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

White

Jewels

20j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1979

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