Seiko Cal. 6628 - 232

The Seiko 6628-232 represents an important milestone in Seiko's 1966 lineup. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-cd4c91ddd1f1]

Also known as: Sumo, Crown

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

40mm

Case Thickness

10.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Black

Jewels

21j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1966

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