Seiko Cal. 7140 - 709

The Seiko 7140-709 represents an important milestone in Seiko's 1966 lineup. The Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-e37292464b9f]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

38mm

Case Thickness

10.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

150m

Dial Color

Green

Jewels

21j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1966

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