Seiko Cal. 6638 - 772

This Quartz model from 1984 features a 34mm Stainless Steel case. The Inner Rotating bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-e1259a703935]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

11.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Cream

Jewels

23j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1984

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