Seiko Cal. 6630 - 445

The Seiko 6630-445 represents an important milestone in Seiko's 1983 lineup. The Inner Rotating bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-66ddf17cd3bd]

Also known as: Silverwave, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

15.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Navy

Jewels

33j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1983

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