Seiko Cal. 4521 - 564

The Seiko 4521-564 represents an important milestone in Seiko's 1974 lineup. It features a Green dial protected by a Hardlex crystal and offers 130m of water resistance. [seikata-wm-df9a3de3229a]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

37mm

Case Thickness

8.1mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

130m

Dial Color

Green

Jewels

29j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1974

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