Seiko Cal. 6663 - 976

The Seiko 6663-976 represents an important milestone in Seiko's 1972 lineup. The Inner Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-d9cb8e01ddd2]

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

43mm

Case Thickness

9.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Silver

Jewels

32j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1972

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