Seiko Cal. 4580 - 740

This Spring Drive model from 1972 features a 46mm Two-Tone case. It features a White dial protected by a Hardlex crystal and offers 50m of water resistance. [seikata-wm-ae011a6f0bc4]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

14.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

50m

Dial Color

White

Jewels

17j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1972

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