Seiko Cal. 5639 - 951

This Spring Drive model from 1985 features a 39mm Hardlex-Coated Steel case. With its 22mm lug width and 15.7mm profile, it sits comfortably on most wrists. [seikata-wm-4060dfb41a24]

Also known as: Panda, Helmet

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

15.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

70m

Dial Color

Silver

Jewels

21j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1985

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