Seiko Cal. 5639 - 118

The Seiko 5639-118 represents an important milestone in Seiko's 1971 lineup. The Bidirectional bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-11d5d2600ac0]

Also known as: Goldfeather, Navigator

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

44mm

Case Thickness

9.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Green

Jewels

33j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1971

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