Seiko Cal. 6621 - 564

This Automatic model from 1976 features a 37mm Hardlex-Coated Steel case. It features a Black dial protected by a Acrylic crystal and offers 100m of water resistance. [seikata-wm-4543f2b465d0]

Also known as: Rally, Golden Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

11.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Black

Jewels

21j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1976

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