Seiko Cal. 6638 - 263

The Seiko 6638-263 represents an important milestone in Seiko's 1977 lineup. The Fixed bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-bbba4f85de4b]

Also known as: Silverwave, Arnie

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

36mm

Case Thickness

14.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

160m

Dial Color

Navy

Jewels

21j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1977

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