Seiko Cal. 5231 - 938

This Hand-Winding model from 1974 features a 37mm Two-Tone case. It features a Green dial protected by a Mineral crystal and offers 140m of water resistance. [seikata-wm-842275433e75]

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

37mm

Case Thickness

11.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Green

Jewels

31j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1974

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