Seiko Cal. 7139 - 204

The Seiko 7139-204 represents an important milestone in Seiko's 1986 lineup. With its 20mm lug width and 8.7mm profile, it sits comfortably on most wrists. [seikata-wm-4de9cf5b689a]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

8.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Cream

Jewels

24j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1986

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