Seiko Cal. 5639 - 341

This Spring Drive model from 1982 features a 35mm Hardlex-Coated Steel case. The Bidirectional bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-a6b995a007d6]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

10.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

140m

Dial Color

White

Jewels

17j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1982

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