Seiko Cal. 6388 - 807

The Seiko 6388-807 represents an important milestone in Seiko's 1975 lineup. The Fixed bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-86ff09ad698a]

Also known as: Helmet

Specifications

Movement

Solar

Case Material

Titanium

Case Width

44mm

Case Thickness

13.0mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

30m

Dial Color

Champagne

Jewels

21j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1975

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