Seiko Cal. 7139 - 412

This Solar model from 1977 features a 39mm Hardlex-Coated Steel case. With its 18mm lug width and 8.1mm profile, it sits comfortably on most wrists. [seikata-wm-a5a0161e4a63]

Also known as: Helmet, Golden Tuna

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

8.1mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Champagne

Jewels

18j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1977

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