Seiko Cal. 5639 - 829

The Seiko 5639-829 represents an important milestone in Seiko's 1966 lineup. It features a White dial protected by a Hardlex crystal and offers 50m of water resistance. [seikata-wm-7736faf40411]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

10.1mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

White

Jewels

27j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1966

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