Seiko Cal. 7139 - 637

The 7139-637 is a sought-after Kinetic piece from Seiko's golden era. With its 21mm lug width and 11.9mm profile, it sits comfortably on most wrists. [seikata-wm-57a76b0095b0]

Also known as: Rally

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

43mm

Case Thickness

11.9mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Cream

Jewels

25j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1973

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