Seiko Cal. 5639 - 341

The Seiko 5639-341 represents an important milestone in Seiko's 1987 lineup. The Inner Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-75709b438872]

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

45mm

Case Thickness

11.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Navy

Jewels

33j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1987

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