Seiko Cal. 6630 - 366

The Seiko 6630-366 represents an important milestone in Seiko's 1976 lineup. The Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-3cb8729eb2c6]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

9.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

170m

Dial Color

Navy

Jewels

28j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1976

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