Seiko Cal. 6690 - 870

This Quartz model from 1978 features a 36mm PVD Black case. It features a Green dial protected by a Hardlex crystal and offers 170m of water resistance. [seikata-wm-6b96707fede8]

Also known as: Silverwave, Baby Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

36mm

Case Thickness

8.0mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

170m

Dial Color

Green

Jewels

22j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1978

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