Seiko Cal. 6628 - 656

The Seiko 6628-656 represents an important milestone in Seiko's 1971 lineup. The Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-01e4f644fb4a]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

14.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

200m

Dial Color

Cream

Jewels

29j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1971

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