Seiko Cal. 6651 - 821

The Seiko 6651-821 represents an important milestone in Seiko's 1981 lineup. The Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-83e19a846c5f]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

43mm

Case Thickness

9.7mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

70m

Dial Color

Cream

Jewels

36j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1981

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