Seiko Cal. 7128 - 638

The Seiko 7128-638 represents an important milestone in Seiko's 1983 lineup. The Bidirectional bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-5834e6968eba]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

15.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Champagne

Jewels

31j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1983

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