Seiko Cal. 6628 - 855

This Spring Drive model from 1970 features a 40mm Gold-Plated case. The Fixed bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-21c5fde19aa3]

Also known as: Monster, Emperor

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

12.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

40m

Dial Color

White

Jewels

29j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1970

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