Seiko Cal. 7139 - 259

Released in 1977, the Cal. 7139 with design code 259 was part of Seiko's domestic market collection. With its 21mm lug width and 12.3mm profile, it sits comfortably on most wrists. [seikata-wm-8da62ce4bdae]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

12.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

110m

Dial Color

Green

Jewels

21j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1977

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