Seiko Cal. 6639 - 112

This Hand-Winding model from 1983 features a 38mm Hardlex-Coated Steel case. With its 18mm lug width and 8.5mm profile, it sits comfortably on most wrists. [seikata-wm-39365931f717]

Also known as: Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

8.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

160m

Dial Color

Cream

Jewels

20j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1983

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