Seiko Cal. 5638 - 456

The Seiko 5638-456 represents an important milestone in Seiko's 1970 lineup. The Rotating bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-5ce345bc1db6]

Also known as: Bellmatic, Arnie

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

41mm

Case Thickness

13.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

200m

Dial Color

Cream

Jewels

28j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1970

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