Seiko Cal. 6639 - 371

This Kinetic model from 1976 features a 42mm Hardlex-Coated Steel case. It features a White dial protected by a Acrylic crystal and offers 200m of water resistance. [seikata-wm-8f7b498515e1]

Also known as: Golden Tuna

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

11.6mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

White

Jewels

18j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1976

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