Seiko Cal. 5639 - 955

The Seiko 5639-955 represents an important milestone in Seiko's 1978 lineup. The Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-8ebb771cf32e]

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

45mm

Case Thickness

14.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

70m

Dial Color

Silver

Jewels

25j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1978

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