Seiko Cal. 5638 - 938

The Seiko 5638-938 represents an important milestone in Seiko's 1981 lineup. It features a Silver dial protected by a Acrylic crystal and offers 60m of water resistance. [seikata-wm-c93c36536f1f]

Also known as: Navigator

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

9.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Silver

Jewels

24j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1981

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