Seiko Cal. 5638 - 306

The Seiko 5638-306 represents an important milestone in Seiko's 1981 lineup. It features a Champagne dial protected by a Acrylic crystal and offers 120m of water resistance. [seikata-wm-cb05c269d45f]

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

35mm

Case Thickness

14.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Champagne

Jewels

24j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1981

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