Seiko Cal. 6638 - 396

The 6638-396 is a sought-after Automatic piece from Seiko's golden era. The Inner Rotating bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-597e3bb3cd82]

Also known as: Arnie

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

44mm

Case Thickness

8.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1980

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