Seiko Cal. 6664 - 599

This Spring Drive model from 1979 features a 35mm PVD Black case. It features a Navy dial protected by a Hardlex crystal and offers 140m of water resistance. [seikata-wm-2e9b8ac94a4d]

Also known as: Helmet, Sea Horse

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

35mm

Case Thickness

9.2mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Navy

Jewels

33j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1979

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