Seiko Cal. 4531 - 311

This Automatic model from 1978 features a 46mm Two-Tone case. It features a Silver dial protected by a Hardlex crystal and offers 50m of water resistance. [seikata-wm-b30ed258905b]

Also known as: Samurai, Arnie

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

46mm

Case Thickness

10.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

50m

Dial Color

Silver

Jewels

25j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1978

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