Seiko Cal. 5639 - 371

This Spring Drive model from 1974 features a 39mm Gold-Plated case. With its 20mm lug width and 9.8mm profile, it sits comfortably on most wrists. [seikata-wm-1c82078326ef]

Also known as: Panda

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

9.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Silver

Jewels

29j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1974

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