Seiko Cal. 5639 - 815

The Seiko 5639-815 represents an important milestone in Seiko's 1985 lineup. The Inner Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-436cee4255f9]

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

15.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

White

Jewels

35j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1985

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