Seiko Cal. 4566 - 109

The Seiko 4566-109 represents an important milestone in Seiko's 1975 lineup. It features a Cream dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-932e29bfade1]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

12.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Cream

Jewels

26j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1975

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