Seiko Cal. 5638 - 353

The Seiko 5638-353 represents an important milestone in Seiko's 1982 lineup. The Fixed bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-ca3dc60163b6]

Also known as: Tuna

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

13.0mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

170m

Dial Color

Black

Jewels

24j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1982

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