Seiko Cal. 5638 - 655

The Seiko 5638-655 represents an important milestone in Seiko's 1989 lineup. The Inner Rotating bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-30b7046023ec]

Also known as: Turtle, Emperor

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

11.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Navy

Jewels

22j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1989

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