Seiko Cal. 5661 - 145

This Automatic model from 1974 features a 40mm Hardlex-Coated Steel case. The Fixed bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-0fcba1659dba]

Also known as: Silverwave, Sea Horse

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

12.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

130m

Dial Color

Champagne

Jewels

30j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1974

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