Seiko Cal. 6661 - 890

This Spring Drive model from 1974 features a 36mm PVD Black case. It features a Black dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-23313fdce0bb]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

36mm

Case Thickness

15.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

170m

Dial Color

Black

Jewels

17j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1974

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