Seiko Cal. 6661 - 587

The Seiko 6661-587 represents an important milestone in Seiko's 1981 lineup. The Fixed bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-6a80b48002a8]

Also known as: Silverwave

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

45mm

Case Thickness

14.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

100m

Dial Color

Burgundy

Jewels

25j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1981

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