Seiko Cal. 6628 - 739

This Spring Drive model from 1988 features a 42mm Stainless Steel case. Powered by the 6628 caliber with 34j jewels beating at 36,000 bph, it delivers a 44 hours power reserve. [seikata-wm-ada4bc073491]

Also known as: Goldfeather

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

14.1mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Navy

Jewels

34j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1988

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