Seiko Cal. 7139 - 495

The Seiko 7139-495 represents an important milestone in Seiko's 1974 lineup. Powered by the 7139 caliber with 22j jewels beating at 36,000 bph, it delivers a 57 hours power reserve. [seikata-wm-e944969e370e]

Also known as: Sumo, UFO

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

15.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

160m

Dial Color

Cream

Jewels

22j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1974

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