Seiko Cal. 6661 - 139

This Hand-Winding model from 1979 features a 36mm Titanium case. It features a Black dial protected by a Acrylic crystal and offers 40m of water resistance. [seikata-wm-e8e757a755f5]

Also known as: Silverwave

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

36mm

Case Thickness

12.0mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

40m

Dial Color

Black

Jewels

29j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1979

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